Of the following primates, which has the longest period of gestation?
A. humans
B. macaques
C. chimpanzees
D. primates do not have gestation periods
A. humans
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In terms of hominin evolution, perhaps the most important part of the diet of early H. sapiens at Pinnacle Point, South Africa, was:
A. drought-resistant nuts and tubers B. large game animals C. shellfish D. fish and water fowl
A study of childrearing among the Ju/’hoansi of Africa indicates that:
a. boys and girls are raised in a very similar manner and are both mild-mannered and self-reliant. b. because girls are out gathering most of the time, they are expected to be more aggressive and self-reliant than boys are. c. mothers spend the least amount of time with their children, and thus the children identify strongly with their fathers. d. boys do more work than girls. e. boys have less responsibility than girls and get to play more of the time.
The Denisovans
A. were distant cousins to the Neandertals and lived in Asia. B. were found with the first evidence of the use and control of fire. C. provide evidence that Neandertals did not interbreed with modern humans. D. are the common ancestor of the australopiths and H. habilis. E. are descended from one man dubbed Dennis, who lived about 200,000 years ago in Africa.
Which statement best describes the relationship between dominance rank and reproductive success (RS) among primate females?
A) High rank may occasionally be correlated with high RS in the short-term, but (except possibly for chimpanzees) the lifetime effects of rank on reproduction are unknown. B) No association between dominance rank and RS, in either the short-term or the long-term, have been reported for primate females except for chimpanzee females. C) Strong rank differences are not characteristic of primate females and, in most species, all adult females have roughly similar levels of RS. D) There is a positive lifetime correlation between these variables. Females born low-ranking will have few offspring; females born high-ranking will produce many. E) none of the above