Of the following statements about attempts to assign humans to discrete racial categories, purportedly based on common ancestry, which is true?
A. They are applied to endogamous breeding populations.
B. They are based on genotypic rather than phenotypic characteristics.
C. They are based on global racial categories that vary little from one society to another.
D. They are a recent phenomenon brought on by globalization.
E. They are culturally arbitrary, even though most people assume they are based in biology.
Answer: E
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The Ariaal subsistence strategy is distinguished from that of their neighbors because
A) they have year round water, so they don't have to move their herds . B) it is based on a mix of three types of livestock to exploit a wide range of resources. C) they raise no camels, since camels are slow reproducers. D) their livestock produces no surplus for trade. E) none of the above.
A body of knowledge gained through observation and experimentation is called
a. science b. hypothesis c. data d. empirical e. theory
At a hypothetical locus, a man's genotype is Aa. What proportion of his gametes would be expected to receive the A allele?
a. 1/3 b. 1/2 c. 3/4 d. 1/4 e. 1/8
The origin of domesticated cattle has been traced to __________
A. Bison antiquus, an extinct form of buffalo that was once common in North America B. the taming of certain varieties of wildebeest that can still be found today in parts of East Africa C. Bos primigenius, a wild species native to Europe that became extinct in the early seventeenth century D. Paleolithic herding of water buffalo in parts of India and Southeast Asia