The increase of the dark form of the peppered moth in industrial England is a direct example of
Correct answer: D. natural selection
- A. genetic drift
- B. artificial selection
- C. inheritance of an acquired character
- D. natural selection
Explanation
Soot darkened the tree trunks, so pale moths became conspicuous to birds while the dark variant was camouflaged, and the frequency of the dark form rose within a few decades. The variation already existed as a mutation and the environment merely decided which form survived to breed. It is not artificial selection because no human chose the breeders, and the moths did not darken through exposure to soot.
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About Darwinism
Darwinism explains evolution through inherited variation, competition for limited resources, survival and reproduction of better-adapted organisms, and natural selection over generations. It is distinguished from Lamarckism because Darwin's explanation depends on selection acting on existing heritable differences, not the inheritance of acquired characteristics.
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