Infanticide by adult males
a. is rare in primates.
b. appears to serve no function.
c. is performed as a means of population control.
d. is not resisted by females, including the mother.
e. has been reported for a number of primate species.
E
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Which of the following statements about U.S. racial categories is true?
A. U.S. racial categories are based on global racial categories that vary little among societies. B. U.S. racial categories are based on genetics, whereas Japan's are based upon undemonstrated descent. C. U.S. racial categories are biologically valid, as demonstrated by the Phipps case in 1970s Louisiana. D. U.S. racial categories are culturally arbitrary, even though most people assume them to be based in biology. E. U.S. racial categories are applied to endogamous breeding populations.
An important consequence of the general increase in private ownership of land and resources is
A) general decentralization of wealth and power. B) an increased sense of national pride. C) an opportunity for more people to gain access to land for subsistence cultivation. D) that land more often does not belong to those who work it. E) none of the above.
Identify a characteristic of Ardipithecus ramidus.
A. a backward-placed foramen magnum B. thin molar enamel C. grasping toe D. large and prominent canine teeth
Under which circumstances are artifacts least likely to be preserved for long periods of time?
A. lying on the floor of a tropical rainforest B. hidden in a dry cave in southern Arizona C. submerged in a waterlogged peat bog in Denmark D. frozen in a Tyrolean glacier