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Biology 22 Online
OpenStudy (anonymous):

What happened to the greenish warbler birds as they migrated from the southern portion of their range up around the Tibetan Plateau?

OpenStudy (anonymous):

a. They evolved separately as they moved north and became two separate species. b. The original species died off, but the ones that were able to adapt to a northern climate evolved into a new species. c. As a whole the species was able to adapt to a colder climate, but no significant changes occurred. d. They were unable to adapt and evolve to ensure their survival and became extinct.

OpenStudy (shrutipande9):

i guess its c

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