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Darwin in his 'Natural Selection Theory' did not believe in any role of which one of the following in organic evolution?

1. Discontinuous variations
2. Parasites and predators as natural enemies
3. Survival of the fittest
4. Struggle for existence

Correct answer: Discontinuous variations

Solution

Darwin’s natural selection theory relied on gradual, continuous variations being filtered by the struggle for existence. He did not accept sudden, discontinuous variations as an important mechanism in organic evolution.

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