Based on the cultural data, which of the following best describes the opinion of the majority of archaeologists regarding the origins of Native Americans?
a. Native American populations originated in Asia.
b. Native American populations are the result of multiple migrations from both Asia and Western Europe.
c. Native Americas only traveled along the Bering Land Bridge route.
d. It is unclear where the Native American populations originated.
e. Many Native American populations are likely the result of boat travel from Polynesia.
Question 2
Which of the following conclusions have NOT been reached concerning variability in Native American mtDNA?
a. These populations were derived from a single northeastern Asian population.
b. There were 4-5 founding maternal lineages.
c. The populations were the result of multiple migrations starting 20,000 years ago.
d. The populations were the result of one migration ca. 20,000 years ago.
e. The physical traits shared by modern Native Americans are a produce of founder effect.
Nitrogen fluxes in Sycamore Creek, Arizona (data from Grimm 1988).
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