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OpenStudy (anonymous):
Green beetles survive because birds don't see them, whereas brown beetles get detected. This is an example of which mechanism of microevolution? gene flow genetic drift natural selection
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thomaster (thomaster):
Gene flow = the transfer of alleles or genes from one population to another. Genetic drift = the change in the frequency of a n allele in a population due to random sampling. Natural selection = the process by which forms of life having traits that better enable them to adapt to specific environmental pressures.
thomaster (thomaster):
Which definition would fit best to your case description?
OpenStudy (anonymous):
natural selection
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