The earliest Americans are known to have arrived in the Americas no later than:
a. 45,000 ya.
b. 30,000 ya.
c. 20,000 ya.
d. 13,000 ya.
e. 8,000 ya.
d
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A unit of sound that distinguishes meaning in a particular language is a __________
A. dialect B. phoneme C. morpheme D. syntax
In 2008, people from which world region constituted most of the United States' foreign-born population?
a. Asia b. Middle East c. Africa d. Latin America and Caribbean
The Sakha have had to adapt to physical and social changes over the years. Which of the following was a pre-Soviet-era adaptation?
a. consolidation of Sakha subsistence practices into sovkhozi, the agro-industrial state farm operations b. industrialization during the 1950s c. paying iasak, or fur tribute, to colonizers d. land loss due to border changes
The genetic variation present in the human species is the product of the four fundamental processes of evolution: mutation, gene flow, natural selection, and __________
A. mitosis B. meiosis C. genetic drift D. gene fusion