Multiple Choice
Which statement best describes the positive aspect of sickle-cell anemia in Africa?
A) It allowed people to work at high altitudes for many hours.
B) It gave people a natural resistance to the malaria parasite.
C) It killed off genetically weak humans who could not possible live to adulthood.
D) It kept human populations in control in a region of sparse food resources.
Correct Answer:
Verified
Correct Answer:
Verified
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