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20 Cards in this Set

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abiotic components
nonliving chemical and physical factors in the environment
ABO blood groups
genetically determined class of human blood baseed on the presence or absence of carbohydrates A & B on the surface of red blood cells
abscisic acid
plant hormone that generally acts to inhibit growth, promote dormancy, and help plants tolerate stress
absorption
uptake of small nutrient molecules by an organism's own body; third main stage of food processing
absorption spectrum
range of a pigment's ability to absorb various wavelengths of light
acid
a substance that increases the hydrogen ion concentration of a solution
acoelomate
solid bodied animal lacking a cavity between the gut and outer body wall
acrosome
organelle at the tip of sperm cell that helps it penetrate the egg
actin
globular protein that links into chains, two of which twist around each other to form microfilaments in muscles
activator
transcription factor that binds to an enhancer ans stimulates transcription of a gene
abiotic components
nonliving chemical and physical factors in the environment
ABO blood groups
genetically determined class of human blood baseed on the presence or absence of carbohydrates A & B on the surface of red blood cells
abscisic acid
plant hormone that generally acts to inhibit growth, promote dormancy, and help plants tolerate stress
absorption
uptake of small nutrient molecules by an organism's own body; third main stage of food processing
absorption spectrum
range of a pigment's ability to absorb various wavelengths of light
acid
a substance that increases the hydrogen ion concentration of a solution
acoelomate
solid bodied animal lacking a cavity between the gut and outer body wall
acrosome
organelle at the tip of sperm cell that helps it penetrate the egg
actin
globular protein that links into chains, two of which twist around each other to form microfilaments in muscles
activator
transcription factor that binds to an enhancer ans stimulates transcription of a gene