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If a population has no variation, why will natural selection become limited?

Answer and explanation

Correct answer: Because selection needs different traits to act upon

Natural selection depends on heritable differences among individuals. If every organism has the same relevant trait, environmental conditions cannot favour one individual over another for that trait. Consequently, differential survival and reproduction are limited, so the population cannot readily change through selection. Option A is correct; the other options describe processes unrelated to the requirement of variation.

Related tags

Natural SelectionVariationPopulation GeneticsHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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