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In which situation is formation of a new species most likely?

Answer and explanation

Correct answer: Separated populations failing to reproduce with each other after a long time

The governing concept is speciation through isolation. When populations remain separated for a long period, mutations, recombination, drift, and selection can produce differences between them. If reproductive isolation develops, members can no longer exchange genes successfully, allowing the populations to become separate species. Thus option A is correct. Frequent mixing prevents divergence, identical food is not sufficient by itself, and an individual injury is not a mechanism of speciation.

Related tags

SpeciationReproductive IsolationEvolutionHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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