Because both early modern and modern humans inhabit a wide variety of environments and climates, natural selection will
A) result in differences in body shape as people adapt to differences in air temperature
B) result in differences in height as people adapt to differences in air temperature
C) result in differences in skin color as people adapt to differences in ultraviolet radiation
D) adapt populations to local environmental conditions
E) all of the above
E
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Homo erectus appeared in Africa about __________ years ago
a. 18,000 b. 180,000 c. 1.8–1.9 million d. 8 million
The domestication of __________ was the first step in the transition to the Neolithic in Africa
A) cattle B) wheat C) millet D) goats
Genetic mutations can never be good
a. True b. False
Social relationships are not important to nonhuman primates and bonds between individuals usually do not last very long
a. True b. False Indicate whether the statement is true or false