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Biology, 13.12.2019 00:31 imjustdumbsis
Horses and donkeys can breed and produce sterile offspring known as mules. horses and donkeys remain separate species because of this hybrid sterility, which is:
1. an allopatric barrier to reproduction.
2. a postzygotic barrier to reproduction.
3. a prezygotic barrier to reproduction.
4. a sympatric barrier to reproduction.
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Horses and donkeys can breed and produce sterile offspring known as mules. horses and donkeys remain...
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