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10 terms

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evolution
change in a kind of organism over time; process by which modern organisms have descended from ancient organisms
fossil
the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
artificial selection
selection by humans for breeding of useful traits from the natural variation among different organisms
adaption
inherited characteristic that increases an organisms chance of survival
fitness
the condition of being suitable
natural selection
a natural process resulting in the evolution of organisms best adapted to the environment
biogeography
dealing with the geographical distribution of animals and plants
homologous structure
structures that have different mature forms in different organisms but develop from the same embryonic tissues
analogous structure
structures that are not the same in form but are used for the same purpose ex: bird wing and fly wing
vestigial structure
parts of an organism that are no longer functioning and do not affect survival