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Scenario: In a population of hawks living in a forest, there are three genetic types: long wings, medium wings, and short-winged.Initial population makeup: 25% long wings, 50% medium wings, 25% short wings.Over time the forest environment changes. New species of shrubs and trees with dense branches show up and become abundant. Hawks with shorter wings can fly more safely in the tight spaces; those with longer wings are more likely to be injured and have a harder time catching birds and mice when they scramble under bushes.1. Is this an example of mutation, selection, genetic drift, or gene flow?

User Dtolnay
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In this case, we can see that the environment is exerting a selective pressure over a certain phenotype, that is short wings, it does not say if medium wings are thriving in this environment or not, however, we know that those with long wings are having difficulties meanwhile short wings are successful, therefore we can see that this is selection.

User Andy Ayers
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