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If two populations live in different environments, why can different traits increase in them?

Answer and explanation

Correct answer: Each environment can make different traits useful.

Natural selection depends on the interaction between existing variation and environmental conditions. Different environments present different challenges, such as temperature, food availability, predators or disease. A trait that improves survival or reproduction in one environment may provide little benefit, or even a disadvantage, in another. Over generations, selection can therefore increase different heritable traits in the two populations. Hence option A is correct; the other options deny variation or misunderstand selection.

Related tags

EnvironmentNatural-SelectionPopulation-VariationHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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