Current versions of the Multiregional Evolution (MRE) model of the origin of contemporary humans suggest that:
A. many speciation events took place in Africa between 100,000 and 200,000 years ago.
B. all humans in the last 1.7 million years have been members of the same species.
C. gene flow from populations on the African continent had a stronger impact than gene flow from other regions.
D. different traits from smaller populations spread more broadly than morphological traits of African origin.
Answer: C
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