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Which ancestors of modern humans migrated out of Africa to populate the rest of the world?

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Which ancestors of modern humans migrated out of Africa to populate the rest of the world?

Which ancestors of modern humans migrated out of Africa to populate the rest of the world?
a. Homo habilis
b. Homo erectus
c. Neanderthals
d. Cro-Magnon
e. Homo sapiens

Question 2

What is NOT a viable explanation for mass extinction?
a. collisions between Earth and other bodies in the solar system
b. continental movements
c. adaptive radiation of new predator species in many lineages
d. alterations in sea level
e. habitat destruction

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