In evolutionary biology, what is meant by 'allopatric speciation'?
Answer and explanation
Correct answer: D. Speciation that occurs when a biological population is separated by a geographical barrier preventing gene flow
- Step 1: Allopatric speciation involves geographical isolation (mountains, rivers, oceans) that allows independent genetic divergence and reproductive isolation. Answer: Speciation that occurs when a biological population is separated by a geographical barrier preventing gene flow. Why not the others: Speciation without geographic isolation is sympatric speciation.
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