OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The species of finches that Darwin observed differed in the shape of their beaks. According to Darwin, all of these species probably differed due to ____
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natural selection
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had migrated from Africa
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had descended from similar birds in Africa
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ate the same diet
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Explanation:
Detailed explanation-1: -On these islands, Darwin observed species of organisms on different islands that were clearly similar, yet had distinct differences. For example, the ground finches inhabiting the Galápagos Islands comprised several species with a unique beak shape (Figure 1).
Detailed explanation-2: -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. Finches that ate small nuts and seeds had beaks for cracking nuts and seeds.
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