When exposed to sunlight, human skin manufactures:
a. calcium.
b. vitamin D.
c. iron.
d. potasium.
B
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The more evolved aspects of human culture, such as science, religion, and philosophy, have no biological foundation
Indicate whether the statement is true or false
Fifty percent of sampled societies thought that gods or spirits were the major cause of illness
Indicate whether the statement is true or false
In nonhuman primates, the most rapid period of brain development occurs
a. several months after birth. b. during adolescence. c. during the same developmental stages as in humans. d. occurs just before birth. e. during early adulthood.
Recent evidence does NOT suggest that
a. HIV is closely related to SIV. b. HIV was initially transmitted to humans from primates with a similar disease. c. HIV has two main forms, HIV-1 and HIV-2. d. SIV has a long evolutionary history in monkeys. e. HIV is not as harmful as we used to believe.