We have ample reason to suppose war has become a problem only in the past _____years, since the invention of food-production techniques and especially centralized states
a. 5,000
b. 50,000
c. 10,000
d. 100,000
e. 150
c
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The secular trend in growth is a result of a reduction of the impact of disease and __________
a. better nutrition b. more exposure to sunlight c. pollutants d. natural selection
The mandibular symphysis is:
A. the point where the retromolar gap contacts the mandible. B. the point where the maxilla and mandible contact one another. C. the point where the two parts of the mandibular ramus contact one another. D. the point where the two halves of the mandible contact one another.
According to the idea of gradualism, macroevolution usually involves
What will be an ideal response?
Based on the theory of kin selection, you should perform the most altruism toward your:
A. aunt B. grandfather C. sibling D. cousin