A population of birds colonizes an area in which the insects upon which they feed live inside trees. Which of the following events accounts for an observed increase in average beak size in the bird population over time?

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Question: A population of birds colonizes an area in which the insects upon which they feed live inside trees. Which of the following events accounts for an observed increase in average beak size in the bird population over time?

Answer: The Correct Answer is Increased fitness of large-beaked birds, leading to natural selection

Reason Explained

The correct is Increased fitness of large-beaked birds, leading to natural selection

Alex Timmons
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