Which of the following traits is found exclusively among New World monkeys?
A. opposable thumbs
B. stereoscopic vision
C. a prehensile tail
D. a rhinarium
C. a prehensile tail
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The consequences of the greater mobility found in industrial societies include:
A. the fact that hybrid groups have tended to develop from populations that were once separated B. a possible increase in the number of heterozygotes C. an increase in the probability of assortative mating D. all of these
As a general rule, most societies divide labor by gender so that
a. women clear land and tend crops. b. men collect firewood, carry water, and clear land. c. men engage in warfare, hunt large animals, and clear land. d. women have children, but men participate daily in their upbringing. e. women and men have tasks that do not overlap or depend upon each other at all.
What was the vital step for the development of metallurgy and the wider and rapid distribution of metals evident after 5000 b.p.?
a. smelting b. copper hammering c. heating copper at low temperatures d. finding richer veins of copper e. investing more labor into mining
Human language is open. This means that:
A. humans can coin new labels for new concepts and objects B. humans can communicate about things not directly in front of them C. human vocalized sounds do not blend with other signals D. human "words" have no real connection to the things to which they refer