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Biology Wagaman

WCHS Wagaman Biology Chapter 15 Vocab

WordDefinition
artificial selection breeding organisms with specific traits to produce offspring with those traits
natural selection when organisms with favorable traits survive and reproduce, passing on those traits
convergent evolution when distantly related organisms evolve similar traits
divergent evolution when closely related species become increasingly different
gradualism the idea that species develop through a gradual change in adaptations
speciation the evolution of a new species (through different means)
analogous structure structures that have similar functions, but no evolutionary relationship
homologous structure structural features with a common evolutionary origin
directional selection when natural selection favors one extreme variation of a trait
disruptive selection when natural selection favors both extremes, and eliminates the medium
stabilizing selection when natural selection favors a medium variation of a trait
vestigial structure a body structure in a present day organism that no longer serves any purpose
Created by: dmoudy
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