Two populations of one species are separated by a mountain range for thousands of years and can no longer interbreed. What process has taken place?

Answer and explanation

Correct answer: D. Speciation

  1. Step 1: Isolation prevents gene flow.
  2. Step 2: Different selection pressures and mutations accumulate until they form new species: speciation.
Answer
Speciation.
Why not the others: Photosynthesis: this is a plant process. Mitosis: this is cell division. Pollination: this is plant reproduction.

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Two populations of one species are… | National 5 (Scotland)