Shared Flashcard Set

Details

Bio/Living Envir.Words and Def
Regents in June
33
Science
10th Grade
05/23/2008

Additional Science Flashcards

 


 

Cards

Term

Abiotic

Definition
nonliving parts of the environment
Term
Acid
Definition
a compund that releases hydrogen ions when dissolved in water;a substance,such as vinegar;with a sour taste
Term
Acid Rain
Definition
rain that is more acidic than normal
Term
Active Transport
Definition

the process by which cells use energy to transport molecules through the cell membrane from areas of low concentration to areas of high concentration

Term
Adaptive Value
Definition
any trait that helps an organisn survive and reproduve under a given set of environmental conditions
Term
Agarose
Definition
A gel-like substance used in bacterial cultures
Term
AIDS
Definition
(aquired immunodeficiency syndrome)the disease that results when the HIV virus attacks the human immune system
Term
Allergy
Definition
A condition in which a person's immune system is overly sensitive to environment substances that are normally harmless
Term
Amino Acid
Definition
Any one of several building blocks of protein
Term
Animal
Definition
A complex,multicellular organism with specialized tissues and organs, but no cell walls;a heterotroph that obtains energy by consuming other organisms
Term
Antibody
Definition
A protein,produced by the immune system,that either attacks invading pathogens or marks them for killing 
Term
Antigen
Definition
A molecule found on the outer surfaces of cells that the immune system recognizes as either part of the body or an outside invader
Term
Antihistamine
Definition
A substance that reduces the effects of histamines and the symptoms they cause
Term
Artificial selection
Definition
The process of breeding two organisms with desirable characteristics to produce offspring that has thte advantages of both parents
Term
Asexual reproduction
Definition
A method of reproduction in which all the genes passed on to the offspring come from a single individual or parent
Term
Assumption
Definition

Something accepted as true that may or may not actually be true

 

Term
ATP
Definition
(adenosine triphosphate)a compound that stores energy in cells
Term

Autotroph

Definition
An organism that produces its own food;the source of energy for all other living things on Earth
Term
Bacterium
Definition
any one of many single-celled organisms without a distinct nucleus
Term
Balance
Definition
A tool that measures mass by comparing the unknown mass of an object with an object of known mass
Term
Base
Definition
A compund that produces hydroxude ions when dissolved in water
Term
Bias
Definition
A tendency to favor something;prejudice
Term
Biochemical process
Definition
A chemical process that occurs in a living thing
Term
Biodiversity
Definition
the variety of species in an area
Term
Biome
Definition
Large groups of ecosystems with similar climates and organisms;examples include the tundra,taiga,temperate forest,chaparral,tropical rainforest,dessert,temperate greassland,tropical savanna grassland,and polar and high-mountain ice
Term
Biosphere
Definition
all of the Earth's ecosystems,collectively;the biologically inhabited portions of Earth,including all of the water,land,and air in which organisms survive
Term
Biotechnology
Definition
The combination of technology and biological sciences
Term
Biotic
Definition

The living parts of the environment

Term
Bond
Definition
The chemical link between atoms that hold molecules together
Term
Calibrate
Definition
To adjust the scale of a measurement tool
Term
Carnivore
Definition
An organism that survives by eating animals
Term
Carrying capacity
Definition
The largest population of any single species that an area can support
Term
Catalyst
Definition
A substance that can speed up the rate of a chemical reaction without being changed or used up during the reaction
Supporting users have an ad free experience!