Which mechanism of reproductive isolation prevents interbreeding between two sympatric species because they breed at different times of the year?
Answer and explanation
Correct answer: B. temporal isolation
- Step 1: Temporal isolation is a prezygotic barrier where species occupy the same area but mate at different times of day, seasons, or years. Answer: temporal (seasonal) isolation. Why not the others: Geographical isolation involves physical spatial barriers (rivers/mountains); behavioral isolation involves courtship displays; mechanical isolation involves incompatible genitalia.
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