Of the roughly 250,000 species of higher plants in the world, how many may have medicinal or nutritional values?
a. All of them
b. 40,000
c. 10,000
d. Roughly half
B
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Many of the political, linguistic, and economic distinctions separating the countries of West Africa today are inventions of colonialism.
Answer the following statement true (T) or false (F)
The earliest cultivation of rice appears to have occurred in:
A. Mexico. B. South China. C. West Africa. D. Bangladesh.
One of the most significant skeletal modifications due to the shift to bipedalism includes several structural changes in the foot
a. True b. False Indicate whether the statement is true or false
Boys might develop stronger muscles and motor behavior than girls because __________
a. they are genetically superior b. they are genetically inferior c. they are held and touched more as babies d. they are encouraged to be aggressive