1.a) Is increase in the average beak depth caused by an increase in large- beaked finches or a decline in small-beaked finches? Explain your answer.
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Question

1.a) Is increase in the average beak depth caused by an increase in

large- beaked finches or a decline in small-beaked finches? Explain your answer.


b) What do you think cause the changes in the finch population and average beak size during the drought?


c) Directional selection occurs when individuals at one end of a range are more likely to survive than intermediate individuals or individuals at the opposite end of the range. Stabilizing selection occurs when intermediate individuals are the most likely to survive. Is directional selection, stabilizing selection, or both operating in this example? Explain.


D) Evolution is the process by which populations of organisms can change over time. How is directional selection related to evolution?

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