In 1984, a fossil cranium and partial mandible, WT 17000, or the "Black Skull," were found at West Lake Turkana. Some paleoanthropologists suggest that this fossil be placed in a species named:
A. Australopithecus habilis
B. Australopithecus capensis
C. Paranthropus aethiopicus
D. Homo africanus
C. Paranthropus aethiopicus
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Most scientists would agree that heritability plays no role in IQ test score variability
a. True b. False
If a society has only two types of religious practitioners, they are usually a shaman healer and a __________
A) priest B) medium C) witch D) sorcerer
Consider a 20 percent increase in the price of a 2 pound bag of sugar and a 20 percent increase in the price of first-class airline travel. In response to the price changes, which of the following is most likely to be true?
A) The total revenue from first-class airline travel will not change. B) The percentage change in the quantity demanded for a 2 pound bag of sugar will be larger than the percentage change in the quantity demanded for first-class airline travel. C) Because first-class airline travel is a luxury good, the quantity demanded will not change with the 20 percent increase in price. D) The percentage change in the quantity demanded for first-class airline travel will be larger than the percentage change in the quantity demanded for a 2 pound bag of sugar.
Which of the following is NOT an adaptive trend in anthropoids?
A. stereoscopic vision B. enhanced sense of touch C. grasping hands and feet D. decreased sociality E. increased brain complexity