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(C) Geographical isolation refers to the physical separation of populations of a species by geographical barriers like mountains,rivers,or deserts.Whe

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Speciation through reproductive isolation

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(C) Geographical isolation refers to the physical separation of populations of a species by geographical barriers like mountains,rivers,or deserts.When populations are geographically isolated,they stop interbreeding with each other.Over time,different mutations and natural selection pressures act on these isolated populations,leading to genetic divergence.This divergence eventually results in reproductive isolation,where the populations can no longer interbreed even if they come into contact again.This process of reproductive isolation is the fundamental mechanism that leads to the formation of new species,known as speciation.

$A$ very important consequence of geographical isolation is ........

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