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How is the evolution of a complex organ like the eye explained?

Answer and explanation

Correct answer: By gradual accumulation of small, useful inherited changes

A complex organ can arise through cumulative evolutionary change rather than appearing fully formed at once. Slight inherited variations that improve light detection or image formation may provide an advantage, and natural selection can preserve them. Repeated changes over many generations can produce increasing complexity. Hence option A is correct; B is unsupported, C confuses acquired traits with inherited variation, and D ignores comparative and fossil evidence.

Related tags

EvolutionEyeNatural-SelectionGradual-ChangeHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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