How do "thrifty genes" serve people in famine-prone areas once conditions improve?
A) They become maladaptive, and lead to increased risk of diabetes and obesity.
B) They become maladaptive, leading to nutritional and caloric deficiency.
C) They become adaptive, helping people burn off excess fat quickly and easily.
D) They become adaptive, allowing for fast digestion of key nutrients.
Answer: A
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What will be an ideal response?
A(n) __________ is a family formed with three or more generations, for example, parents, children, and grandparents
a. generational family b. homestead c. extended family d. nuclear family
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Recent cross-cultural studies of gender roles demonstrated that
A. foraging, horticultural, pastoral, and industrial societies all have similar attitudes regarding gender roles. B. the relative status of women is variable, depending on factors such as subsistence strategy, the importance of warfare, and the prevalence of a domestic-public dichotomy. C. the gender roles of men and women are largely determined by their biological capabilities. D. women are subservient to men in nearly all societies because their subsistence activities contribute much less to the total diet than do those of men. E. changes in the gender roles of men and women are usually associated with social decay and anarchy.