[Answer] A subset of a population of birds leaves its habitat on the mainland and colonizes a nearby island. The birds after a period of time become reproductively isolated. The island sinks and the population of birds that lived on the island returns to its original habitat. Which of the following statements about these bird populations is true?

Answer: The populations will not be able to interbreed because they are different species.(Why: different species cannot interbreed)

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A subset of a population of birds leaves its habitat on the mainland and colonizes a nearby island. The birds after a period of time become reproductively isolated. The is...

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