What is allopatric speciation?
Answer and explanation
Correct answer: B. Speciation that follows geographical isolation of populations
- Step 1: Populations are separated by a barrier.
- Step 2: Over time they diverge until they can no longer interbreed.
Answer
Speciation that follows geographical isolation of populations.
Why not the others: Speciation caused by a polyploid chromosome change in one population: this is sympatric. Speciation that happens without any reproductive barrier: reproductive isolation is required. Speciation caused by a single mutation in one individual: speciation takes many generations.
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