Which of the following is an ancient record-keeping system that used a system of knots tied into strings?
a. cornelian binding
b. clove hitching
c. khipus
d. cuneiform
c
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Ultraviolet radiation can be an important factor in selection for increased melanin production because UV radiation can cause which of the following?
a. ?Albinism b. Spina bifida c. ?The rebuilding of folate d. ?Rickets e. ?Skin cancer
The oldest known stone artifacts are:
A. from southern Chile. B. approximately 1 to 2.5 m.y.a. C. 3.3 m.y.a. D. more than 5.2 m.y.a.
Which of the following statements about orangutans is true?
A. The large size of the orangutan protects it from extinction. B. Orangutans are the most sociable primates. C. As is typical of arboreal species, the orangutan exhibits little sexual dimorphism. D. Orangutans are less arboreal than gorillas. E. Orangutans used to live over much of Asia but now are found only on two islands in Indonesia.
When particular commodities such as cotton are analyzed, what do you learn about the application of neoliberal policies in the United States in practice?
A) ?Few government officials care about neo-liberalism. B) ?American cotton producers used to receive significant government cash subsidies. C) ?Government officials do not support cotton production in Texas. D) ?American production techniques make US cotton price competitive.