Question

People from the high-altitude highlands of South America develop larger lung capacity in order to process more oxygen; however, if these individuals move to a lower altitude, the size does not reverse because:
a. acclimatization is permanent.
b. advantageous phenotypic traits are genetically determined.
c. this trait is a variation that results from only genetic factors.
d. this is a permanent developmental adaptation.
e. this adaptation changes the individual's DNA.

Answer

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