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Two species interbreed occasionally and produce vigorous, fertile hybrids. When the hybrids breed with each other...

Two species interbreed occasionally and produce vigorous, fertile hybrids. When the hybrids breed with each other or with either parent species, however, the offspring are feeble or sterile. These species are affected by

a) gametic isolation.
b) reduced hybrid fertility.
c) reduced hybrid viability.
d) hybrid breakdown.
science   biology   
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Answer #1

B is absolutely correct answer because these hybrid are viable but have reduced hybrid fertility that's why can't reproduce.

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