Which of the following is a mechanism by which human populations cope with high altitudes?
a. hypoxic ventilatory response (HVR)
b. vasodilation
c. pupil constriction
d. vasoconstriction
Answer a
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From 1925 to until recently, a series of court cases have ruled that which of the following laws or policies was legal?
A. law prohibiting the teaching of evolution B. law mandating equal treatment of creation-science with evolution C. school district rule restricting the right of teachers to teach creationism in the classroom D. All of these were declared illegal.
What two significant crops grown in the world today were first domesticated by American Indians?
a. potatoes and maize b. wheat and rice c. corn and wheat d. oats and barley
About one-fourth of all prescribed drugs in the U.S. contain active ingredients obtained from higher plants
Indicate whether the statement is true or false
Anthropologists can probably aid in humankind's understanding of its existence in the global village by making a concerted effort to comprehend the historical and sociocultural incentives and roots that contribute to ethnic conflicts
Indicate whether the statement is true or false.