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AP Bio Test #7

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31964335taxonomyBranch of biology concerned with identifying, describing, and naming organisms.
31964336paleontologyStudy of fossils that results in knowledge about the history of life.
31964337natural selectionMechanism of evolution caused by environmental selection of organisms most fit to reproduce; results in adaptation to the environment.
31964338fossil recordHistory of life recorded from remains from the past.
31964339comparative anatomythe study of anatomical features of animals of different species in order to determine either current or ancestral relationships
31965081gene poolTotal of all the genes of all the individuals in a population.
31965082directional selectionOutcome of natural selection in which an extreme phenotype is favored, usually in a changing environment.
31965083stabilizing selectionOutcome of natural selection in which extreme phenotypes are eliminated and the average phenotype is conserved.
31965084phyletic evolutionGenetic changes that occur within an evolutionary line that eventually cause one species to split into two species
31965085punctuated equilibriuma theory of evolution holding that evolutionary change in the fossil record came quickly due to major environmental events rather than in a steady process of slow change; the opposite of gradualism.
31965086gradualismA view of evolution that attributes profound change to the cumulative product of slow but continuous change that is passed on from parents to offspring over many generations.
31965558geographic isolationseparation of populations as a result of geographic change or migration to geographically isolated places
31965559reproductive isolationseparation of species or populations so that they cannot interbreed and produce fertile offspring
31965560adaptive radiationEvolution of several species from a common ancestor into new ecological or geographical zones.
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