The eastern meadowlark and the western meadowlark are two bird species that look very similar to each other.Why do biologists not consider them the same species?
A) Species are not determined by appearance but by their ability to interbreed naturally.
B) The two species do not live in the same habitat and thus do not interbreed in nature.
C) The two species experience the reproductive barrier of habitat isolation.
D) All of the above are correct.
Correct Answer:
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