FORESTRY
PLANT AND WOOD ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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attracting a mate
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defending territory
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building nests
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gathering food
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Detailed explanation-1: -This variation helped Darwin arrive at his understanding that the finches and other birds had adapted to the islands and specific environments where they live, leading to the theory that species are not fixed and unchanging; instead, they evolve over time from common ancestors.
Detailed explanation-2: -Visible Evidence of Ongoing Evolution: Darwin’s Finches He observed these finches closely resembled another finch species on the mainland of South America and that the group of species in the Galápagos formed a graded series of beak sizes and shapes, with very small differences between the most similar.
Detailed explanation-3: -On the Galapagos Islands, Darwin also saw several different types of finch, a different species on each island. He noticed that each finch species had a different type of beak, depending on the food available on its island. The finches that ate large nuts had strong beaks for breaking the nuts open.