The language experiments with chimpanzees, bonobos, and gorillas indicate that they
a. lack the ability to communicate symbolically.
b. can learn to use up to 100 spoken words.
c. have some ability to use signs to communicate.
d. have human-like vocal tract anatomies.
e. think symbolically in the same way humans do.
C
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Rather than attempting to classify humans into racial categories, biologists and anthropologists are
A. denying the existence of any biological variation among humankind. B. trying to verify anthropometric data from the turn of the century. C. confident that earlier racial classifications are still valid. D. seeking to explain why specific biological variations occur. E. attempting to create new categories based only on blood type.
The extinction of the australopithecines suggests that the
A. australopithecines ultimately were unsuccessful in competing with early Homo populations. B. broad-spectrum revolution was not adaptive. C. australopithecines had no social organization. D. transitional stage between apes and humans was very short. E. australopithecines are relatively unimportant in the study of human evolution.
Because of their relative genetic similarity,
a. domesticated species of grasses are susceptible to disease, drought, and pests. b. several roots crops are no longer able to sustain populations. c. scientists are trying to prevent reestablishing genetic diversity in grasses and several root crops through limiting introduction of heterogeneous strains. d. domesticated species of grasses are better than domesticated species of fowl and animals. e. domesticated species of plants are never interspersed with different species of plants.
Cross-culturally, women's roles tend to be focused on activities associated with the home, while men are more active in the public domain
Indicate whether the statement is true or false.