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| A chemical that s secreted by one neuron to another across the synapse, located in the brain |
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| The space between two neurons, located in the brain |
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| A change in an organism's environment |
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| any behavior of a living organism that results from an external or internal stimulus |
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| A fatty sheath that covers the axon of a neuron and accelerates the transmission of an impulse. |
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| Membranes that help protect the brain, could become inflamed |
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| The maintenance of a stable internal environment |
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| The part of the brain that is the relay system for the sensory organs |
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| This part controls the primal instincts such as emotions and body temperature |
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Definition
| This part controls all intelligent body functions, all of them are voluntary |
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| This part of the brain controls involuntary actions |
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Definition
| This of the brain part controls reflexes |
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Definition
Located at the base of the brain.
The hormones it controls are the Growth, Thyroid-stimulant, and the Follicle stimulant. Targets all tissues and promotes the growth and stimulus. |
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Definition
| Located in the front of the neck. The hormones it controls are the thyroxin. It's target tissues are the blood of all the cells. It's hormones control the iodine levels in the blood. |
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Definition
| Located in the thyroid gland. The hormones it secrets are the parahormone. The target tissues are bones, blood and all other tissues. The hormones regulate levels of calcium and phosphorus. |
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Definition
| Located on top of the kidneys. The hormones it secrets are corticosteroids, epinephrine and adrenalin. It's target tissues are the heart, blood and lungs. The hormones increase the blood flow and prepare for fight or flight. |
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Definition
| Located in between kidneys. The hormones it secrets are insulin and glucagon. It targets the blood and liver. The hormones level the sugar in the blood. |
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Definition
| Located in the lower part of the body. The hormones it secrets are estrogen, testosterone and progesterone. It's target tissue is the ovaries/testes. Increase production of eggs/sperm. |
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| Located in the chest cavity. Doesn't have any hormones secreted. It's target tissue is the immune system. The hormones increase production of the immune system. |
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Definition
| The growth that a plant has towards water. |
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Definition
| When a plant responds to a stimulus. |
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Definition
| The inflammation of the meninges in the brain. |
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Definition
| Affects the body's ability to produce sugar. |
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| Viral infection that causes paralysis |
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| controls all cell activities, NEVER SAY BRAIN!!!! |
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| Aids or helps in protein synthesis |
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Definition
| controls (regulates) what enters or leaves the cell, semi-permeable, transport channel, cell to cell communication. Double layer of lipids and proteins |
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Definition
| Site of all life functions, site of all chemical reactions |
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Definition
| Energy for the cell is mostly makes aerobic cell respiration |
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| Endoplasmic Reticulum (Smooth or rough) |
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Definition
| Internal channels to help transport things inside the cells |
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Definition
| Site of protein synthesis |
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Definition
| Storage 'bag' membrane, water vacuole, food vacuole |
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Definition
| involved in cell division (ONLY IN ANIMALS) |
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Definition
| Outer most structure, non-living, made of cellulose, stiff "skeleton" (ONLY IN PLANTS) |
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Definition
| Green, due to the chemical chlorophyll, photosynthesis (ONLY IN PLANTS) |
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Definition
| Water filled, provides firmness (ONLY IN PLANTS) |
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Definition
| identifies molecules, transport channel, detects nerve/hormone signals (receptor molecules) |
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Definition
| The process in which organisms make energy, can be aerobic or anaerobic |
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Definition
| The process in which organisms make large molecules from smaller ones |
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Definition
| The process that controls and coordinates all activities of an organism |
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Definition
| The process in which organisms make more of their own kind |
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Definition
| The process in which organisms remove chemical waste |
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Definition
| All of the life functions |
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Definition
| The random movement of molevules from an area of high concentration to low concentration. Since it uses no energy it is a type of passive transport. |
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Definition
| The diffusion of water across a membrane. Active transport is used in order to get a substance across a membrane, energy must be used. |
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Definition
| When a cell pinches inward to bring in a molecule |
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Definition
| When a cell engulfs a particle |
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Definition
| The cell is the basic unit of life, cells make up all living things, one cell must arise from another previously existing cell |
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Term
| Exceptions to the Cell Theory |
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Definition
| Viruses are not made up of cells, When/what was the first cells? Chloroplasts and Mitochondria are able to replicate out of the cell. |
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Definition
| Monera, Protista, Fungi, Plants and Animals |
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Definition
| Heterotrophs, multicultural e.g. sponge, clam and humans |
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Definition
| Autotrophs, multicellular e.g. moss, ferns, flower |
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Definition
| Heterotrophs, multicellular, have plant-like structures e.g. mushrooms, yeast, mold, mildew |
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Definition
| Unicellular, have a nucleus e.g. ameba, paramecium, algae |
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Definition
| Unicellular, have no nucleus e.g. bacteria |
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Definition
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| Parts of the body simplest to most complex |
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Definition
| Organelles--> Cells --> tissue --> organs --> systems --> organism |
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Definition
| Anything that is considered sugar or a starch. Contains the elements CH2O. It's building blocks are Monosaccharides and Glucose. It's function is energy. |
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Definition
| Fat, oil, wax. It's elements are CHO (a lot of H) Glycerol+Fatty acid are it's building blocks. It's function is insulation, energy storage, protecting young and cushioning |
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Definition
| It's elements are CHON. It's building blocks are amiNo acids. It's function is structure |
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Definition
| It's elements are CHONP. It's funtion is to pass heredity information for generations. |
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Definition
| Chemicals in living organisms |
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Definition
| Do not contain both carbon and hydrogen |
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Definition
| Contain both carbon and hydrogen |
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Definition
| controls rate of chemical reactions so life can exist some slow down, speed up |
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Definition
| Happens in the large intestine. Too much water is being absorbed from your feces. |
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Definition
| Happens in the large intestine. Not enough water is being absorbed. |
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Definition
| Happens in the stomach, beginning of the small intestine. The erosion of the lining of the stomach |
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Term
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Definition
| happens in the appendix. An infection by bad bacteria with inflammation. |
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Definition
| Happens in the gall bladder. Pellets of hardened cholesterol. |
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Definition
| Happens in the body. Eat, purge by vomit or laxatives. |
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Definition
| Happens in the body, don't eat |
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Definition
| Happens in the liver. Liver problems too many RBC are being destroyed, yellow pigment to the skin. |
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Definition
| Happens in the liver. Virus infects the liver, causes cell damage. |
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Definition
| Happens in the liver. Scar tissue on the liver. Caused by drugs or alcohol. |
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Term
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Definition
| Cilliated mucus membranes, filter, warm, moistens air. |
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Definition
| Closes the nasal cavity when you swallow. |
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Definition
| A valve that closes the trachea. |
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Definition
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Definition
| The single tube that goes down your neck into your chest and behind the heart. Cartilage is used to hold it open. |
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Definition
| The tubes which enter the lungs and then keep on branching |
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Definition
| Last, smallest tubes which end in the Alveoli. |
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Term
| Airsacs/ Alveolus/ Alveoli |
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Definition
| Only place for gas exchange |
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Definition
| Where food enters the mouth mechanical digestion where oxygen can enter and CO2 can leave. |
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Definition
| Mechanical digestion, crushes, tears and rips food into smaller pieces. More surface are. |
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Definition
| Produces salivary amalayse which starts the chemical breakdown of foods. |
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Definition
| This is a tube that directly links the mouth to the stomach. Pushed down by Peristalsis. |
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Definition
| Where proteins are broken down, bile is contained here and turns and turns the food into a liquid. |
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Definition
| Produces the peptides enzyme that breaks down proteins, starches and some fats. |
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Definition
| Secrets emulsifiers that breaks down fat |
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Definition
| Contains the most amount of enzymes in the body, stores bile |
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Definition
| This is where the most chemical digestion occurs |
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Definition
| This is where the water is absorbed back into the body |
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Term
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Definition
| This is where the waste products of the body are removed. |
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Definition
| Located in the salivary glands. Breaks down food in the mouth. |
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Definition
| Located in the stomach. Breaks down proteins |
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Definition
| Located in the stomach. Produces specific enzymes to break down proteins. |
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Definition
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Definition
| Located in the liver breaks down the lipids. |
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Term
| Dipeptidase, Tripeptidase |
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Definition
| Located in the gall bladder. Breaks down materials on a molecular scale. |
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Definition
| Located in the pancreas. Breaks down all materials. |
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Definition
| Located in the stomach. This is a liquid chemical that starts the breaks down of materials, emulsifies. |
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Definition
| Immunity that develops after exposure to a specific antigen (e.g. vaccine) |
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Term
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Definition
| Immunity in which the body produces its own antibodies after exposure to an antigen |
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Term
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Definition
| Site on the surface of an enzyme molecule to which substrate temporarily bonds. |
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Definition
| An structural or behavioral modification that helps the organism to survive and reproduce |
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Definition
| An energy transfer compound that is converted to ATP by the addiction of a phsophate group |
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Term
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Definition
| The acquired immune deficiency syndrome, is a disease caused by a virus called HIV that attacks the human immune system. |
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Term
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Definition
| Two or more forms of the gene that controls a particular trait |
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Definition
| An immune reaction caused by substances that are harmless in most people |
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Definition
| Organic compounds that are the building block of proteins; consists of an amino group, carboxyl group, and a side chain of atoms |
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Definition
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Definition
| Chemicals used to kill certain pathogenic bacteria |
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Definition
| Protein substance produced by white blood cells in response to an antigen |
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Definition
| Protein substance whose presence causes an immune response (antibody production) |
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Definition
| Reproduction involving only one parent. |
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Definition
| High energy compound formed from ADP and phosphate during cellular respiration; energy released by the breakdown of ATP to ADP is used for the life activities of all organisms |
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Definition
| Smallest unit of an element |
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Definition
| Organism that can synthesize organic food substances from inorganic substances |
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Definition
| Type of nutrition in which an organism synthesizes organic substances from inorganic substances; photosynthesis and chemosynthesis |
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Definition
| A one-celled organism with a primitive cell structure; lacks a nuclear membrane and membranous organelles |
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Definition
| Laboratory instrument used to measure weight |
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Definition
| A substance that forms hydroxyl ions in water solutions |
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Definition
| The total response of an organism to stimuli |
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Definition
| Chemical processes that occur in living things |
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Definition
| The sum total of all the different species of organisms that make up the Earth |
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Definition
| Type of asexual reproduction in which parent cell divides into two daughter cells of approximately the same size |
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Definition
| The study of life and licing things |
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Definition
| A climax community of plants and animals that covers a large geographic region |
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Definition
| The portion of the earth containing living things |
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Definition
| The science that uses both biological discoveries and new technological procedures |
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Definition
| Any living thing in the environment that affects other living things |
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Definition
| Period of time when the fetus is forced from the uterus by muscular contractions controlled by a hormone from the pituitary gland |
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Definition
| Fluid tissue composed of plasma, red blood cells, white blood cells, and platelets |
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Definition
| Type of connective tissue; contains minerals that make it hard; makes up skeleton |
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Definition
| Control center of the nervous system; along with spinal cord, makes up central nervous system |
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Definition
| The chemical attachment between atoms to form molecules; involves either the transfer of electrons from one atom to another, or the sharing of electrons between atoms |
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Definition
| A chemicals process in which large complex molecules are changed into smaller simpler molecules |
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Definition
| Type of asexual reproduction in which the division of the cytoplasm is unequal and the offspring is smaller than the parent cell |
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Definition
| Simple chemical molecules that join together to form larger more complex molecules |
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Definition
| A disease characterized by uncontrolled cell division. |
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Definition
| A group of organic compounds that serve as sources of cellular energy; contain carbon, hydrogen and oxygen, with hydrogen to oxygen ratio of 2:1; includes sugars and starch |
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Definition
| An animal that feeds on other animals (meat eater) |
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Definition
| The number of organisms any habitat can support; is limited by the available energy, water, oxygen, and minerals, and by the ability of the ecosystem to recycle the residue of dead organisms through the activities of bacteria and fungi |
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Definition
| Substance that affects the rate of a chemical reaction without being permanently changed by the reaction |
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Definition
| The basic unit of structure and function of all living things |
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Definition
| Process by which energy in food molecules is converted to a form that can be used by the cells |
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Definition
| Laboratory techniques used to detect the presence of specific substances or conditions |
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Definition
| Green pigment in plants, algae, and other protists; necessary for photosynthesis |
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Definition
| An analytical technique used to chemically separate mixtures and substances |
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Definition
| Rod shapend structures within the nucleus; contain genes |
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Definition
| Any change in the structure or number of chromosomes |
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Definition
| Population of identical cells or organisms produced by asexual reproduction from a single cell or organism |
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Definition
| Genetic information, known as the genetic code, present in the structure and organization of the DNA molecule; depends upon the order of the different nucleotides in the DNA molecule |
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Definition
| A close association between two different kinds of organisms that benefits one of the organisms but not necessarily the other |
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Definition
| All the organisms living in a particular area |
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Definition
| A struggle for survival between organisms for space, food, water, light, minerals, or other limited resources |
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| Compound light microscope |
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Definition
| A microscope with two lenses or systems of lenses |
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Definition
| IN scientific inquiry the answer to the problem in a controlled experiment |
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Definition
| Organisms that must obtain organic nutrients from the environment; a heterotroph |
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Definition
| That part of an experiment that does not contain the variable |
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Definition
| An experiment performed in duplicate, identical expect for one variable between the experimental and the control groups. |
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Definition
| Components of the human body that detect disturbances or deviations in human systems and make corrective actions that maintain homeostasis |
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Definition
| Body systems working together to maintain homeostasis |
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Definition
| Body processes that respond to an upset in homeostasis to maintain its equilibrium |
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Definition
| Observations of facts; can be mathematical as well as observations made with the senses or with scientific instruments. usually represented by diagrams, tables, charts, graphs, equations, and matrices (tables, lists, etc) |
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Definition
| The time in an organism's life when all vital life functions stop permanently; the end of life. |
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Definition
| The chemical breakdown of the remains of dead organisms. |
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Definition
| Organisms, mainly bacteria and fungi, that obtain nutrients by breaking down the remains of dead organisms |
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Definition
| Cutting down by humans of large tracts of trees without replacement |
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Definition
| Loss of a chromosome segment during meiosis |
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Definition
| In a controlled experiment, the part of the experiment that depends on the changes in the independent variable |
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Definition
| Using up nonrenewable natural resources |
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Definition
| A departure from an organism's system's normal balance |
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Definition
| A biome characterized by sparse rainfall; may show extreme fluctuations in daily temperatures |
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Definition
| In organisms, the changes that occur from fertilization to death |
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Definition
| Classification keys that are used to identify or classify unknown organisms according to the structural characteristics |
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Definition
| Process by which embryonic cells form different types of tissues and organs |
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Definition
| Process by which largo insoluble food molecules are broken down into smaller soluble molecules that can be used by the cells |
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Definition
| Removing or destroying all of one type of species from a large geographic area |
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Term
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Definition
| An upset in the normal function of some vital life process that is harmful to the organism |
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Term
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Definition
| Material (deoxyribose nucleic acid) of the chromosomes that contains all the hereditary information encoded in the sequence of nucleotides |
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Term
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Definition
| capacity of one allele for a trait to suppress the expression of the contrasting recessive allele in the heterozygous individual |
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Term
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Definition
| The coiled ladder structure of DNA developed by Watson and Crick |
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Term
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Definition
| The changes within an organism's body systems that maintain a steady or balanced state of its life functions in order to keep its internal environment within normal limits |
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Term
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Definition
| Gradual replacement of one kind of biotic community by another ending with a climax community |
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Term
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Definition
| The branch of biology that deals with the relationships of living things with each other and with the environment |
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Term
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Definition
| The living members of a community and the nonliving portions of their environment |
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Term
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Definition
| Female gamete or reproductive cell |
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Term
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Definition
| A laboratory technique that uses the movement of electrically charged particles to separate large molecules such as DNA and proteins |
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Term
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Definition
| early stage in the development of an organism |
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Term
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Definition
| The changes that developing organisms undergoes from fertilization to birth |
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Term
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Definition
| Gland that produces hormones and secretes them directly into the bloodstream |
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Term
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Definition
| Cell organelle consisting of membrane-lined channels through the cytoplasm; associated with synthesis, storage, and transport of substances in the cell |
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Definition
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Term
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Definition
| The movement of energy in one direction through ecosystems; typically from the sun, through photosynthetic organisms, including a green plants and algae, to herbivores, carnivores and decomposers |
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Term
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Definition
| A representation describing the concept of energy flow through the food webs in an ecosystem where the amount of useable energy decreases with each higher feeding level. The bottom of the pyramid represents producers carrying with the greatest amount of energy and the top represents the highest level consumers with the smallest amount of energy |
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Definition
| The natural world, including the physical factors, within which animals and plants live |
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Term
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Definition
| The indirect or direct consequences of human actions on the natural environment |
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Term
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Definition
| Organic (protein) catalyst that increases the rate of chemical reactions in living cells |
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Term
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Definition
| Female sex hormone produced by the ovaries; regulates the development of the female secondary sex characteristics |
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Term
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Definition
| The gradual process of change in living things through time; accounts for the development of new species |
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Term
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Definition
| Process by which the wastes of metabolism are removed from the body |
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Term
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Definition
| In genetics, those traits that always appear when present in an organism |
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Term
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Definition
| The outside surroundings of an organism |
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Definition
| The total disappearance of a particular species that was once prevalent on earth. |
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Definition
| Lipids that are solid at room temperature |
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Term
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Definition
| An organism's systems for self-regulation |
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Term
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Definition
| In sexual reproduction, process in which male and female gametes fuse, forming a zygote; restores the normal number of chromosomes |
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Term
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Definition
| Developing unborn mammal; in humans the stage that begins after the second month of development |
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Term
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Definition
| Those natural resources that are limited (cannot be replaced) |
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Term
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Definition
| A representation of the pathways of energy flow through the living components of an ecosystem beginning with green plants and ending with higher-level consumers |
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Term
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Definition
| Interconnecting food chains of an ecosystem |
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Term
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Definition
| The remains or traces of an organism that no longer exists |
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Term
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Definition
| Fuels such as petroleum, coal, and natural gas produced millions of years ago by the remains of organisms |
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Term
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Definition
| Documentation of the earth's history through the study of remains or traces of organisms that no longer live |
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Term
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Definition
| Reproductive cells; sperm or egg |
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Term
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Definition
| A sequence of nucleotides in DNA that carries coded hereditary information; found at specific locations on chromosomes |
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Term
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Definition
| A change in the genetic code of DNA |
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Term
| Genetically engineered organisms |
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Definition
| Organisms whose genes (DNA) have been altered |
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Term
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Definition
| Removing genes (DNA) from one organism and inserting them into another organism's genetic material. The changed DNA is called recombinant DNA |
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Definition
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Term
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Definition
| Period of time from the beginning of the world to today |
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Term
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Definition
| The gradual increase in the earth's temperatures; believed to be caused in part by the greenhouse effect and depletion of the ozone layer |
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Term
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Definition
| A simple sugar; major source of energy for cells |
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Term
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Definition
| Laboratory instrument used to measure volume |
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Term
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Definition
| Method used to record observations (data) in organized manner |
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Term
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Definition
| An increase in size and/or number of cells |
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Term
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Definition
| Pairs of cells that regulate the opening and closing of leaf stomates |
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Term
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Definition
| An animal that feed only on plant material |
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Term
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Definition
| The passing of genetic information from parent to offspring |
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Term
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Definition
| An organism that must obtain nutrients from the environment; includes all animals and fungi, most bacteria and some protists |
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Term
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Definition
| Maintenance of a stable internal environment |
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Term
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Definition
| Substances produced by endocrine glands; control and coordinate life activities |
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Definition
| The organism in a parasitic relationship that is harmed by the parasite |
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Definition
| A prediction about the possible answer t a problem |
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Definition
| A body system that recognizes and distinguishes the body's own cells from invading foreign cells |
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Definition
| The capacity to resist disease |
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Definition
| The part of a controlled experiment that influences the dependent variable |
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Definition
| Production and manufacturing processes |
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Definition
| Reaching logical conclusions, deductions, or judgments based on observations |
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Definition
| A health problem caused by a disease-causing organism |
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Definition
| The process by which traits are passe from parent to offspring |
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Definition
| A molecule that does not contain both carbon and hydrogen |
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Definition
| Pancreatic hormone that lowers the glucose level in the blood |
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Definition
| The development of an organism inside the body of the female |
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Definition
| Uniting of the egg and sperm inside the female's body |
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Definition
| Classification groups with the most highly diverse and largest number of organisms |
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Definition
| Conditions that determine the numbers and kinds of organisms that can inhabit an ecosystem and can reduce population growth that would normally be expected through reproduction |
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| Life functions or processes |
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Definition
| Activities carried out by all living things in order to stay alive |
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Definition
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Definition
| A class of warm-blooded vertebrate animals that feed their young with milk-secreting organs called mammary glands |
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Definition
| Type of cell division in which the daughter cells contain half the number of chromosomes found in the parent cell; occurs only in gamete information |
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Definition
| Cycle in human females in which the uterus is prepared for implantation of a fertilized cells |
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Definition
| All the chemical processes of an organisms that are necessary to keep it alive |
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Definition
| Laboratory instrument used to measure length |
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Definition
| Laboratory measurement system; cased on multiples of ten |
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Definition
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Definition
| Unit used to measure length when using the microscope; equal to 0.001 millimeter |
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Definition
| Organelles involved in cellular respiration a process that releases energy for life activities; often called the "powerhouses" of the cell |
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Definition
| Type of cell division that results in tow daughter cells identical to the parent cell and to each other |
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Definition
| Smallest unit of an element or compound having properties of that substance |
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Definition
| A change in the DNA sequence of a gene or a change in structure of a chromosome |
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Definition
| A type of nutritional relationship in which both organisms benefit |
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Definition
| The process in which inherited variations make some organisms better adapted to the environment than others; gives them a better chance to survive and reproduce |
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Definition
| Carry electrical than others; gives them a better chance to survive and reproduce |
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Definition
| The role an organism plays in its habitat or ecosystem |
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Definition
| Cell structure that controls all cellular activities and contains the hereditary material |
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Definition
| A substance that undergoes fission (splitting of the atom) and provides power |
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Definition
| Food substances that provide the body with the materials and energy needed to carry out live activities. The usable parts of foods |
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Definition
| Information or data that is gathered during laboratory investigations |
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Definition
| An animal that feeds on both plants and animals |
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Definition
| A group of tissues working together to perform a particular function |
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Definition
| A group of organs working together performing a body function |
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Definition
| Structures found inside a cell that performs a specific function |
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Definition
| A compound that contains both carbon and hydrogen |
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Definition
| An individual living thing |
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Definition
| The diffusion of water molecules through a selectively permeable membrane from a region of high water concentration to a region of low water concentration |
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Definition
| Female reproductive organ; produces eggs |
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Definition
| The production by a population of more offspring than can survive in the environment |
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Definition
| A gas composed that is a by-product of photosynthesis and used by aerobic organisms during respiration |
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Definition
| A layer of ozone gas that surrounds the earth and protects the earth from harmful radiation |
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Definition
| Organ that produces pancreatic juice, which contains digestive enzymes; as an endocrine organ, produces the hormones insulin and glucagon |
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Definition
| An organism that lives on or in another organism called the host. The parasite benefits and the host is harmed |
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Definition
| Movement of material through a cell membrane without the expenditure of cell energy; diffusion and osmosis |
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Definition
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Definition
| Chemicals used to kill insect pests |
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Definition
| Unit used in measuring acidity and alkalinity of solutions; based on hydrogen ion concentration |
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Definition
| The process by which energy from light is converted into chemical energy in the presence of chlorophyll |
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Definition
| The first organisms to populate a given location in an ecological succession |
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Definition
| A harmful change the chemical composition of air, soil and water |
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Definition
| All the members of the same species that live in a particular area |
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Definition
| An animal that is killed and eaten by another animal |
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Definition
| The period of time between fertilization and birth |
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Definition
| An organism that is able to make its own food from inorganic materials |
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Definition
| A sex hormone produced by the female ovaries |
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Definition
| Organic compounds made up of chains of amino acids |
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Term
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Definition
| Energy emissions in the form of rays or waves; some may be harmful (e.g. UV rays) |
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Term
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Definition
| Protein molecules in the cell membrane that play an important role int eh interactions between cells by binding to hormones and other molecules sent as communtion signals from cells such as never cells |
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Definition
| New combination of genetic materials; occurs during reproduction or crossing over of chromosomes |
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Definition
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Definition
| The process by which the activities of an organism are controlled and coordinated |
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Definition
| Duplication of DNA or chromosomes |
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Term
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Definition
| Production of new individuals; not necessary for the life of a single organism but is necessary for the continued existence of a particular kind of organism |
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Definition
| Medical intervention in the natural processes of reproduction |
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Definition
| Process by which energy is released from nutrient molecules and stored in molecules of ATP |
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Term
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Definition
| Site of protein synthesis; found loose in cytoplasm or on membranes of endoplasmic reticulum |
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Term
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Definition
| Nucleic acid (ribonucleic acid) that carries out instructions for protein synthesis coded in DNA |
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Term
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Definition
| Heterotrophic plants, fungi, and protists that obtain nutrients from the remains and wastes of living things |
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Term
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Definition
| Nucleic acid (ribonucleic acid) that carries out instructions for protein synthesis coded in DNA |
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Definition
| An animal that feeds on found remains of animals |
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Definition
| A body of knowledge resulting from experimentation and observation |
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Definition
| A method by which plant and animal breeder to choose desired traits from parent organisms and then mate the parent organsims hoping to produce offspring with those favored characteristics |
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Definition
| A reproductive cell; male cell is called the sperm, female cell is the egg |
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Term
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Definition
| Method of reproduction involving two parents; offspring is different from either parent |
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Definition
| Result of the complete digestion of carbohydrates. Glucose and fructose are simple sugars |
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Term
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Definition
| One kind of organism; capable of mating in nature only with other organisms like itself and producing fertile offspring |
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Definition
| Object to be viewed under a microscope |
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Definition
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Definition
| A healthy ecosystem where there is a constant supply of energy, living organisms that can incorporate the energy into organic compounds, and a recycling of materials between organisms and the environment |
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Definition
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Definition
| Used to color certain cell parts so that they are more easily seen with the microscope; two commonly used stains are iodine and methylene |
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Term
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Definition
| A stable or balanced internal environment of an organism |
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Term
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Definition
| Also called a dissecting microscope; used to examine specimens that are small but can be seen with the unaided eye |
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Definition
| A competition, usually due to overproduction, among organisms for space, food water, light, minerals, or other limited resources |
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Term
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Definition
| Substance changed by the action of an enzyme |
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Term
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Definition
| The four types of nucleotides bases (adenine, guanine, cytosine, thymine) that make up the DNA molecule |
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Term
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Definition
| Type of nutritional relationship in which two organisms of different species live together in close association with at least one member of the association benefiting by teh association |
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Term
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Definition
| All the chemical reactions by which large molecules are produced from smaller molecules within the organism |
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Definition
| Organs working together to perform a particular function |
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Definition
| Branch of biology concerned with classification |
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Definition
| The use of tools, machines, inventions and other scientific principles to do work and solve problems |
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Definition
| Male reproductive organs; produce sperm |
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Term
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Definition
| Male sex hormone produced by testes; controls development of male secondary sex characteristics |
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Term
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Definition
| Scientific guesses- possible answers to complex problems |
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Term
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Definition
| Laboratory instrument used to measure temperature |
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Term
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Definition
| A group of specialized cells working together to perform a particular function |
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Definition
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Definition
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Definition
| Muscular organ in placental mammals; place of embryonic development |
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Definition
| An injection of a dead or weakened form of a disease-causing microorganism to stimulate antibody production by white blood cells |
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Term
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Definition
| The part of the experiment that is being tested |
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Definition
| Difference in genetic traits |
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Term
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Definition
| Nonliving material; not made up of cells but contain genetic material; reproduce inside another cell called the host cell. Can cause dieseases |
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Definition
| Used in the laboratory to study plant and animal cells |
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Definition
| Blood cellst aht fuction as part of teh immune system |
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Definition
| Cell formed by union of gametes; fertilized egg |
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