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| the proces of becoming adapted to an enviroment: an anatomical, physiological or behavior that impoves surviving/reproducing odds |
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| An evoltionary pattern in which many species evolve from a single ancesteral species |
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| an anatomical strucutre in one species that is similar in function and appearence, but not evolutionary origin, to another anatomical strucure in another species |
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| the artificial breeding (by humans) of organisms for specific characteristics |
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| reproduction that involves a single parent to produce offsrping that are indentical to parent |
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| the process by which 2 or more related but reproductivly isolated population become more and more dissimalar |
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| hange in the gene pool of a population from generation to generation by such processes as mutation, natural selection, and genetic drift. |
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| a measure of one's individual's hereditary contribution to the next generation |
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| all of the genes of the reproductively active members of a population |
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the physical separation of populations due to geographic barriers that prevent interbreeding
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| anatomical structures in one species that, compared to other anatomical structures in another species, originated form a single anatomical structure in a common ancestor of the two species |
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| a change in the nucleotide-base sequence of a gene or DNA molecule |
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| 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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| a group of organisms of the same species that live in a specific geographical area and interbreed |
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the inability of members of a population to successfully interbreed with members of another population of the same or related species
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| the intentional mating of two animals in an attempt to produce offspring with desirable characteristics or for the elimination of a trait |
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| group of organisms that are closely related and can mate to produce fertile offspring; also the level of classification below genus and above sub-species |
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| the formation of new species as a result of evolution |
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| a structure in an organism that is reduced in size and function and that may have been complete and functional in the organism’s ancestors |
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