Answer :

Final answer:

The beak sizes and shapes of Darwin's finches are correlated with the availability of different food sources in their environment. For example, finches with smaller beaks have better survival and reproduction rates when there is an abundance of small, soft seeds.

Explanation:

Darwin's finches have beak sizes and shapes that are correlated with their environment, specifically with the type of food available. The beak shapes have evolved over time to equip the finches to acquire different food sources. For example, on the Galápagos island of Daphne Major, the medium ground finches' beak size changed in response to the availability of different-sized seeds. When there was an abundance of small, soft seeds, the smaller-billed birds had better survival and reproduction rates, leading to evolution of smaller average bill size.

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