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Evolution

Evolution Vocabulary
a data set by lbaker
created December 15, 2016
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FAMILY TREE
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termdefinition
homologous structuressame structure different function
analogous structuresame function different structure
convergent evolutiondifferent species start to look alike because in the same environment
divergent evolutionsame species starts to look different because they occupy different habitats
coevolution2 species evolve together
vestigial structureslost their function
whale femur bonesvestigial structures
forearms of humans and horseshomologous structures
wing of birds and insectsanalogous structures
natural selectionorganisms that are best suited for the environment survive.
artificial selectionhumans select for certain traits
gene poolall the genes in a population
directional selectionone extreme is favored
disruptive selectionboth extremes are favore
stabilizingthe average individual is favored
genetic equilibriumallele frequency remains the same
genetic drift change in allele frequency occurs by chance in small populations
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