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All 18 terms

TermDefinition
populationa group of organismsof the same species that live a specific geological area and interbreed
natural selectionthe process by which individuals that have favorable variations and are better adapted to their environment survive and reproduce more successfully than less adapted individuals
adaptationsthe process of ecoming adapted to an environment
reproductive isolationcondition where two populations of the same species do not breed with one another because of geographical separation
extinctdescribes a species of oganisms that has died out completely
analogous structureA body part similar in function to that of another organism
homologous structurea similiar structure in two organisms can be found in the common ancestore of the organisms
paleontologista scientist that studies fossils
gradualisma model of evolution in which gradual change over a long period of timeleads to biological diversity
punctuated equilibriuma model of evolution in which short peridos of drastic change in species, including mass extinctions and rapid speciation, are separated by long periods little or no change
vestigala stucture in an organism that is reduced in size and function and that may have been complete and functional in the organism's ancestors
embryologyan organism in an early stage of development of plants and animals
industrial melanismdarkening of an organism's coloration due to pollution
divergencethe accumulation of differences between groups to form a new species
convergencesimilarities which evolve in organisms not closely related to one another because the organisms live in similar environments
speciationthe formation of new species as a result of evolution by natural selection
ecological racea population of a species that differs genetically from other populations of the same species because they have adapted to different environments
isolationa state of separation between populations

Set Information

Terms 18
Creator The_puma_concolor
Created May 5, 2009
Groups None
Subject biology vocab
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