Why does exogamy, the practice of seeking a husband or wife outside one's own kin group, have adaptive value outside of biological concerns?
A. It was an important causal factor in the origin of social stratification.
B. Exogamy is not adaptive; it is just a cultural construction.
C. It impedes peaceful relations among social groups and therefore promotes population expansion.
D. It creates new social ties and alliances, providing access to more resources and social networks.
E. It increases the likelihood that disadvantageous alleles will find phenotypic expression and thus be eliminated from the population.
Answer: D
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The term ________ refers to a unilineal descent group whose members claim, but cannot demonstrate, common descent from an apical ancestor.
A. extended family B. lineage C. clan D. family of orientation E. family of procreation
Enzymes
a. are amino acids. b. are major constituents of body tissues. c. initiate and enhance chemical reactions in the body. d. are also called zygotes. e. have no cellular function.
Homo erectus dates from around __________ million years ago.
A) 2.8 B) 3.8 C) 1.8 D) 4.8
In DNA replication:
A. messenger RNA translates each triplet into the corresponding amino acid B. transfer RNA translates each triplet into the corresponding amino acid C. the bonds holding the bases together are broken and the exposed bases attract complementary bases D. mitochondrial DNA is formed based on the template of nuclear DNA