Multiple Choice
What type of traits does sexual selection tend to favor?
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1. Introduction to Biology
Natural Selection and Evolution
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What observations did Charles Darwin make about finches in the Galapagos Islands that contributed to his theory of natural selection?
A
The finches had different beak shapes adapted to their specific diets.
B
The finches were the only birds present on the islands.
C
The finches migrated to the islands from the mainland every year.
D
The finches were all the same species with identical beak shapes.
Verified step by step guidance1
Charles Darwin observed that the finches on the Galapagos Islands had a variety of beak shapes.
He noted that these different beak shapes were adaptations to the specific diets available on each island.
Darwin realized that the finches with beak shapes best suited to their environment were more likely to survive and reproduce.
This observation led him to propose that natural selection was a mechanism for evolution, where advantageous traits become more common in a population over time.
Darwin's study of the finches provided key evidence for his theory of natural selection, illustrating how species can adapt to their environments through gradual changes.
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