Question

What is required for sympathetic speciation to occur?

A. Continuous gene flow populations'
B. Geographic separation of a population
C. Emergence of a reproductive barrier
D. A limited separation of members of a population, followed by reintroduction back into the parent population​

Answer 1

I'm no biology teacher but I think its C im in 8th grade and did this last year i believe(:

Step-by-step explanation:

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