The answer is B, the Soviet Union refused to participate!
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B. A graph showing the number of Native America’s between 1492 and 1600.
I think this is the best answer because the question places emphasis on STUDYING the effect of germs exchanged, not what type of germs were exchanged.
The two phenomena that characterized the frequency of agriculture was the spread of infectious diseases and the decline of nutritional quality. Infectious diseases spread because of emergence of sedentary lifestyle while the less nutritious food led to the decrease of bone size.
Answer:
Nobility refers to people of the highest social class who may or may not be related to royalty. The Incas had both a royal and a noble class. The higher a person was on the social ladder, the better their lives tended to be.
Explanation:
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