According to the Regional Continuity Model, ________ prevented local populations of premodern Homo sapiens from becoming separate species
a. founder's effect
b. gene flow
c. displacement by African Homo sapiens
d. mitochondrial DNA
e. genetic drift
b
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If a monopolistically competitive firm is producing 500 units of output and at this output level, the price is $2 and the average total cost is $2, the firm profit/loss is equal to ________ and it ________ possible for the firm to be in long-run equilibrium.
A) $0; is B) $50; is C) $0; is not D) -$50; is not
What became the central economic activity for the Lakota nations by as early as the seventeenth century?
a. farming and selling crops b. selling and trading firearms c. trapping and trading d. organizing warfare
Each of the following is a theory about the origin and purpose of the caste system in India except:
a. ?castes are based on a concept of pure and impure substances devised to regulate boundaries between different groups. b. castes are an ancient form of political factions that emerged from the imperial time period and are continued today. c. ?castes emerged from the Hindu practice of purity and impurity as far as contact with impure substances; it reflects occupational groups. d. ?it is a system that emerged from the Indian history of four classes and the hierarchy among these groups; each represents different statuses and power.
Multiculturalism was endorsed by the U.S. and European states in the 1980s
a. True b. False