Primates are characterized by flexible patterns of locomotion. This is made possible by:
A. a flexible shoulder characterized by a well-developed clavicle
B. five digits on the hand and foot
C. a grasping big toe
D. all of these
D. all of these
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Which of the following statements about natural selection is FALSE?
A. Natural selection is the sum of environmental forces that conditions the survival of particular phenotypes. B. Natural selection is most obvious when there is competition among a population for strategic resources. C. Natural selection operates with respect to specific environments. D. Natural selection was first scientifically described by Darwin and Wallace. E. Natural selection operates directly on genetic variety.
Unlike Trobriand women, which of these must a Chinese rural women possess in order to be a marriageable bride?
A) ?Her virginity. B) ?Evidence of sexual experience. C) ?A dowry. D) ?A wedding gown.
What modern factor is making it less common for people to seek help from their kindred?
A) increasing population B) aid from the state C) more frequent divorce D) smaller family size
Based on Table 9.1 in your book, "Patterns in the Sexual Division of Labor," Which of these tasks is the least likely to be sex-specific?
a. Milking animals b. Tending small animals c. Wood working d. Hunting