An examination of racial classifications from around the world indicates that
A. all cultures classify races similarly.
B. the classification of racial types is an arbitrary, culturally specific process.
C. the best racial classifications are based solely on genotype.
D. the best racial classifications are based solely on phenotypical traits.
E. the best racial classifications are based on both genotype and phenotype.
Answer: B
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By 1,550 years ago, the population of Tikal had achieved a density of _____ people per square kilometer
a. 600 to 700 b. 25 to 100 c. 1 million d. 100 to 150 e. 3,000 to 5,000
Ecology is the study of:
A. animals. B. climatological influences on evolution. C. fossils over a significant geological time period. D. interrelationships between living organisms and their environments.
What earlier theoretical approach did Leslie White's neoevolution counter?
A) historical particularism B) diffusionism C) cultural evolution D) participant-observation
Today, scientists believe that the high rate of diabetes found within many American Indian groups is primarily due to:
a. the thrifty gene b. diet and exercise c. genetic predisposition d. mitochondrial DNA