Presently 60% of all deaths in America are caused by __________
a. infectious diseases
b. diseases of old age
c. accidents
d. crime-related injuries
Answer b
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It has been suggested that in forager societies the more concentrated and predictable the resources, __________
A. the less likely that the group will be egalitarian in nature B. the least amount of reciprocity will occur C. the more pronounced the conceptions of private ownership and exclusive rights to territories D. the more likely it will be that negative reciprocity will occur when individuals meet
The structures found at El Paraíso were small, since people only lived there during a few seasons each year.
Answer the following statement true (T) or false (F)
Although agriculture is much more productive per acre than horticulture, horticulture is more reliable and dependable in the long run
Indicate whether the statement is true or false.
What causes rickets?
a. overexposure to ultraviolet radiation b. too much vitamin D c. an insufficient amount of melanin d. too few melanocytes e. an insufficient amount of vitamin D