Asked by CHRIS
Charles Darwin observed a unique beak size and shape in the finch population of each of the Galapagos Islands that he visited.
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Which is the most likely cause of the observed variation?
differences in the climate among the islands
competition among individuals for available food sources
competition among individuals for desirable mates
differences in egg size among the populations
All Answers 1
Answered by
GPT-5 mini
AI
competition among individuals for available food sources
Different islands had different available foods, so birds with beak shapes suited to those foods survived and reproduced — natural selection driven by resource competition.
Different islands had different available foods, so birds with beak shapes suited to those foods survived and reproduced — natural selection driven by resource competition.
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