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Evolution (Mechanisms of evolution (Natural selection, Genetic drift, gene…
Evolution
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Selection Types
Stabilizing selection (acts to impede changes in population by acting against extreme phenotypes, instead favoring average phenotypes
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Disruptive selection (creates bimodal distribution by favoring two or more extreme phenotypes over the average)
Artificial selection (non natural, can favor any phenotype based on breeder's choice)
Non Darwinian Evolution
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Gene flow (organisms enter the population of study, changing the allele frequency)
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Islands
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Biotic disharmony (New islands are empty habitats waiting to be colonized. Islands are undisturbed, predator free, low rate of competitors and disease.
Notes
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Selection pressures (natural selection can favor, disfavor, or conserve(not affect) the genetic make up of a population)
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