Which sequence correctly describes allopatric speciation?

Answer and explanation

Correct answer: D. Geographical isolation, different selection pressures, allele frequency changes, reproductive isolation

  1. Step 1: A physical barrier separates populations. Step 2. Differing selection and mutations lead to divergence until they cannot interbreed. Answer: Geographical isolation, different selection pressures, allele frequency changes, reproductive isolation. Why not the others: reproductive isolation comes after geographic isolation; polyploidy describes sympatric speciation; random mating in one habitat does not cause speciation.

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