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Evolution
| Question | Answer |
|---|---|
| adaptation | any structural, biochemical, or behavioral characteristic of an organism that helps it to survive potentially harsh environmental conditions |
| artificial selection | a technique of plant/animal breeding in which individual organisms displaying desirable characteristics are chosen for breeding purposes |
| common ancestry | a concept central to the theory of evolution that postulates that all organisms share a common ancestry whose closeness varies with the degree of shared similarity |
| comparative anatomy | the study of similarities in the anatomic structures of organisms, and their use as an indicator of common ancestry and as evidence of organic evolution |
| comparative cytology | the study of similarities in the cell structures of organisms, and their use as an indicator of common ancestry and as evidence of organic evolution |
| comparative biochemistry | the study of similarities in the biochemical makeups of organisms, and their use as an indicator of common ancestry and as evidence of organic evolution |
| comparative embryology | the study of similarities in the patterns of embryological development of organisms, and their use as an indicator of common ancestry and as evidence of organic evolution |
| evolution | any process of gradual change through time |
| geographic isolation | the separation of species populations by geographic barriers, facilitating the evolutionary process |
| geologic record | a supporting item of evidence of organic evolution, supplied within the earth's rock and other geologic deposits |
| gradualism | a theory of the time frame required for organic evolution that assumes that evolutionary change is slow, gradual, and continuous |
| gene pool | the sum total of all the inheritable genes for the traits in a given sexually reproducing population |
| homologous structures | structures present within different species that can be shown to have had a common origin but that may not share a common function |
| natural selection | a concept, central to Darwin's theory of evolution, to the effect that the individuals best adapted to their environment tend to survive and to pass their favorable traits on to the next generation |
| survival of the fittest | The concept, frequently associated with Darwin's theory of evolution, that in the intraspecies competition among naturally occurring species, the organism best adapted to the particular environment will survive. |
Created by:
LFeldmann
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