The earliest agricultural complexes of South America are noteworthy for their inclusion of __________.
A. medicinal plants, like hemp and flax
B. non-food plants, like cotton
C. cultivated grasses, like oats and barley
D. domesticated animals, like horses and cattle
Question 2
The earliest evidence for agricultural origins in Africa points to which one of the following?
A. cattle domestication in the Sahara
B. yam domestication in sub-Saharan, tropical regions
C. the cultivation of wild grasses in the Nile delta region D. the extensive use of millet in the Sahara
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