Why do human females have such a long period during which they can no longer reproduce?
a. Women lack libido in comparison to men.
b. Women are biologically "programmed" to live 12-15 yrs beyond the birth of their child.
c. Women need men to keep their infants fed.
d. Women are not attractive after reproductive age.
e. Women are more aggressive after reproductive age.
B
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________ is the greatest threat to endangered primates.
A. Uniformitarianism B. Mutation C. Deforestation D. Directional selection E. Intragroup predation
Which of the following is correct?
a. Globalization is allowing the standard of living for the poor to catch up to the rest of the developing world. b. Tariffs have decreased over the years to allow for more trade between countries. c. The poorest people now make over a dollar a day. d. None of these are correct.
How might bipedalism be adaptive for maintaining a stable body temperature?
A) It cools the body by reducing the overall surface area. B) It warms the body by placing the head closer to the sun. C) It helps to cool the body by limiting the surface area directly exposed to the sun. D) It helps to warm the body by increasing the surface area of the back.
A system of stratification in which membership in a stratum is in theory hereditary, strata are endogamous, and contact or relationships between members of different strata are governed by explicit laws, norms, or prohibitions is called:
a. egalitarian. b. class. c. stratified. d. caste.