Ultraviolet radiation can be an important factor in selection for increased melanin production because UV radiation can cause
a. rickets.
b. albinism.
c. skin cancer.
d. the destruction of foliage.
e. drought.
C
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One advantage of Marxist theories of social stratification is __________
a. they treat societies as dynamic b. they can be quantitatively proven c. they demonstrate why societies are stable d. it allows for egalitarian principles
What are structural similarities between species that are based on common function and not on common evolutionary descent called?
a. acquired b. generalized c. non-adaptive d. analogies e. homologies
If a man marries his deceased brother's widow, it is a levirate marriage.
Answer the following statement true (T) or false (F)
Which of the following has created dramatic economic and social shifts in rural and urban communities?
a. modernization b. globalization c. traditionalism d. industrialization e. colonialism