Scientific classifications are:
A. ends in themselves
B. means of discovering relationships
C. derived from empirical studies
E. all of these
D. means of discovering relationships and derived from empirical studies
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In the study of students who viewed videotaped gestures, __________ interpreted them correctly
a. 100% b. 23% c. 0% d. 50%
Among the Inuit of Canada, which of the following is practiced to settle disputes?
a. imprisonment b. song duels c. direct retribution d. negative sanctions in the form of fines e. ancestor retaliation
WT 15000, or "Turkana Boy," is an important find because it showed that Homo ergaster:
A. remained as short as H. habilis B. lived as early as 2.5 million years ago C. had cranial capacities as large as H. sapiens D. none of these
The earliest stone tools are dated to approximately
a. 2.6 million years old b. 25,000 years old c. 250,000 years old d. 25 million years old e. 50 million years old