Term
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Definition
Natural Selection
Species
Cell division
Meiosis
Chromosome
Population
Prey
Protein
Gene
Amino acid
Extinct
Carrying capacity
Respiratory system
Muscular system
Digestion
Camouflage
Homeostasis
Embryo
Zygote
clone
autotroph
Organ
Clone
Inference
Biodiversity
Competition
Pharynx
Esophagus
Hormone
Transcription
Replication
Alveoli
Bronchioles
Vein
Osteoclast
Dermis
Sebaceous gland
Tendon
Cartilage
Stomach
Pancreas
Villi
Neuron
Myelin sheath |
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Term
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Definition
| reproduction that does not involve the union of gametes and in which a single parent produces offspring that are genetically identical to the parent |
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Term
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Definition
| a heritable change in the characteristics within a population from one generation to the next |
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Term
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Definition
| the movement of particles from regions of higher density to regions of lower density |
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Term
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Definition
| in eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes |
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Term
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Definition
| a haploid reproductive cell that unites with another haploid reproduction cell to form a zygote |
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Term
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Definition
| an animal that lives off of eating other animals. |
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Term
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Definition
| the material that contains the information that determines inherited characteristics. |
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Term
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Definition
| (ribosomal RNA) an organelle that contains most of the RNA in the cell and that is responsible for ribosome function. |
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Term
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Definition
| a type of protein or RNA molecule that speeds up metabolic reactions in plants and animals |
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Term
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Definition
| reproduction in which gameetes from two parents unite. |
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Term
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Definition
| the process of becoming adapted to an environment; an anatomical,physiological, or behavioral trait that improves an organism's ability to survive and reproduce. |
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Term
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Definition
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Term
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Definition
| a system that circulates the blood throughout the entire body |
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Term
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Definition
| the process of eliminating metabolic wastes. |
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Term
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Definition
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Term
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Definition
| the sum of all chemical processes that occur in a organism. |
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Term
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Definition
| the hardened remains or traces of an animal or plant that was kept for rememberence |
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Term
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Definition
| anatomical structures in one species that, compared to other anatomical structures in another species, originated from a single anatomical structure in a common ancestor of the two species. |
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Term
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Definition
| a organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesize organic compounds from inorganic materials. |
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Term
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Definition
| the use of the data and techniques of engineering and technology for the study and solution of problems concerning living organisms |
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Term
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Definition
| a collection of specialized cells and cell products that performs a specific function. |
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Term
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Definition
| a group of organs that accomplish related tasks |
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Term
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Definition
| an analytical technique used to separate DNA fragments by size |
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Term
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Definition
| a person or animal that is descended from a specific ancestor |
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Term
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Definition
| a change in the nucleotide-base sequence ofa gene or DNA molecule. |
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Term
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Definition
| a minute part of a chromosome that influences the inheritence and developement of some characteristic |
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Term
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Definition
| the opening through which a person or animal takes in food |
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Term
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Definition
| either of two parts of the alimentary canal |
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Term
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Definition
| a cell organelle composed of RNA and protein; the site of protein synthesis. |
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Term
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Definition
| the portion of protein synthesis that takes place at ribosomes and that uses codons in mRNA molecules to specify the sequence of of amino acids in polypeptide chains. |
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Term
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Definition
| the central organ of the respiratory system in which in which oxygen from the air is exchanged with carbon dioxide from the blood. |
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Term
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Definition
| the two large, main branches of the windpipe, one going to each lung |
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Term
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Definition
| a blood vessel that carries blood away from the heart to the body's organs |
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Term
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Definition
| the main artery in the body; it carries blood from the left ventricle to systemic circulation |
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Term
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Definition
| the outer surface layer of cells of a plant or animal |
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Term
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Definition
| a band or sheath of connective tissue investing, supporting, or binding together internal organs or parts of the body |
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Term
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Definition
| a small narrow cavity that holds a strand of hair that is located on the skin |
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Definition
| a type of connective tissue that holds together the bones in a joint |
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Term
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Definition
| a place where two or more bones meet |
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Term
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Definition
| the large, reddish-brown organ that makes bile and helps the body absorb food |
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Term
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Definition
| a sac-shaped organ that stores bile produced by the liver |
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Term
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Definition
| a collection of nerve fibers through which impulses travel between the central nervous system and other parts of the body |
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Term
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Definition
| a chemical substance that transmits nerve impulses across a synapse |
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Term
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Definition
| the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution |
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Term
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Definition
| a group of organisms that are closely related and can mate to produce fertile offspring; also the level of classification below genus and above and above subspecies |
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Term
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Definition
| the formation of two cells from on e existing cell |
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Term
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Definition
| a process in cell division during which the number of chromosomes decreases to half the original number by two cell divisions of the nucleus, which results in the production of sex cells (gametes or spores) |
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Term
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Definition
| in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA |
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Term
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Definition
| a group of organisms of the same species that live in a specific geographical area and interbreed |
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Term
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Definition
| an animal hunted or killed for food by another animal |
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Term
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Definition
| an organic compound that is made of one or more chains of amino acids and that is a principal component of all cells. |
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Term
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Definition
| a short segment of DNA that contains the instructions for a single trait. |
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Term
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Definition
| an organic molecule that contains a carboxyl and an amino group and that makes up proteins; a protein monomer. |
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Term
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Definition
| the death of every member of species. |
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Term
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Definition
| the largest population that an environment can support at any given time. |
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Term
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Definition
| a collection of organs whose primary function is to take in oxygen and expel carbon dioxide; the organs of this system include the lungs, the throat and the passageways that lead to the lungs. |
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Term
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Definition
| is the anatomical system of a species that allows it to move |
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Term
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Definition
| the breaking down of food intochemical substances that can be used to obtain energy. |
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Term
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Definition
| the disguising of troops, ships, guns, etc. to conceal them from the enemy, as by the use of paint, nets, or leaves with patterns merging with the backround |
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Term
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Definition
| the steady-state physiological condition of the body. |
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Term
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Definition
| an organism in the early stage of development of plants and animals; in humans, a developing individual is referred to as an embro from the second through the eighth week of pregnancy. |
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Term
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Definition
| the cell that results from the fusion of gametes; a fertilized egg. |
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Term
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Definition
| an organism that is produced by asexual reproduction and that is genetically identical to its parent; to make a genetic duplicate. |
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Term
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Definition
| an organism that produces its own nutrients from inorganic substances |
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Term
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Definition
| a collection of tissues that carry out a specialized function of the body. |
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Term
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Definition
| an organism that is produced by asexual reproduction and that is genetically identical to its parent; to make a genetic duplicate. |
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Term
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Definition
| an act or the process of inferring |
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Term
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Definition
| the variety of organisms considered at all levels, from populations to ecosystems. |
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Term
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Definition
| the struggle among individual organisms for food, water, space, etc. when the available supply is limited |
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Term
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Definition
| in flatworms, the muscular tube that leads from the mouth to the gastrovascular cavity; in animals with a digestive tract, the passage from the mouth to the larynx and esophagus. |
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Term
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Definition
| the tube through which food passes from the pharynx to the stomach |
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Term
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Definition
| a substance that is secreted by cells and that acts to regulated the activity of other cells in the body. |
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Term
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Definition
| the process of forming a nucleic acid by using another molecule as a template; particularly the process of synthesizing RNA by using one strand of a DNA molecule as a template. |
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Term
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Definition
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Term
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Definition
| the final branchings of the respiratory tree and act as the primary gas exchange units of the lung |
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Term
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Definition
| a small air passage that branches from the bronchi within the lungs. |
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Term
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Definition
| in plants a bundle of vascular tissue that transports fluids and nutrients; in animals, a vessel that carries blood to the heart. |
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Term
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Definition
| any of the large multinucleate cells in bone which absorb or break down bony tissue |
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Term
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Definition
| the layer of skin below the epidermis. |
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Term
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Definition
| any organ or specialized group of cells that produces secretions of or like fat |
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Term
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Definition
| a tough connective tissue that attaches a muscle to a bone or to another body part. |
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Term
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Definition
| a flexible and strong connective tissue. |
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Term
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Definition
| the large, saclike organ of vertebrates into which food passes the esophagus or gullet for storage while undergoing the early processes of digestion |
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Term
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Definition
| a large elongated gland situated behind the stomach and secreting a digestive juice into the small intestine |
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Term
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Definition
| tiny, finger-like projections that are approximately 0.5-1mm in length and come out from the wall of the small intestine |
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Term
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Definition
| a nerve cell that is specialized to receive and conduct electrical impulses. |
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Term
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Definition
| the insulating envelope of myelin that surrounds the core of a nerve fiber or axon and facilitates the transmission of nerve impulses |
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