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What stage is the first stage of speciation?

A. The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.

B. The populations are isolated and thus do not interbreed.

C. The populations become totally separated from one another.

D. The populations successfully interbreed.

2 Answers

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I just took a quiz that had this question and the answer is C the populations become totally separated from one another. I got a 100% so there you go! hoped this helped!
User Taras Kalapun
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the answer is C the populatoons become totally seperated from one another