How did Greenberg and Ruhlen come to the conclusion that there were three waves of migration into the New World?
A) They examined archaeological remains such as pottery and tools for changes in technique.
B) They compared skeletal features across a number of New World archaeological sites.
C) They compared the indigenous languages of North and South America.
D) They analyzed the blood groups of people across North and South America.
C) They compared the indigenous languages of North and South America.
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Tool use is an example of __________
a. ecological intelligence b. social intelligence c. technical intelligence d. environmental intelligence
________ has argued that there is a connection between body temperature and bipedalism in that a biped is exposed to less of a heat load when the sun is directly overhead
Fill in the blank(s) with correct word
Tourism always has a negative impact on traditional art styles
Indicate whether the statement is true or false
In the United States, less than __________ of the population works in agriculture
a. 12 percent b. 3 percent c. 20 percent d. 1 percent