A) they are physically isolated by natural barriers
B) they are sharing the same area but cannot interbreed
C) they live together and breed freely to produce viable offspring
D) they are isolated but often come together for breeding
Correct Answer: A
Solution :
When two related populations occupy geographically or spatially separated areas, they are called as allopatric population. Allopatric speciation is the formation of new species through geographical isolation, eg, formation of Darwins finches that formed separate species in the Galapagos Islands.
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