According to the US Census Bureau, the world’s population will be an estimated ________ billion by 2050.

a. 5
b. 6.5
c. 7.5
d. 8
e. 9


Answer: D

Nutritional Science

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Approximately what percentage of people with osteoporosis are female?

a. 24 b. 50 c. 67 d. 95

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The primary (1st level) structure of the protein determines its:

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What effect do vitamin B12 injections have in healthy athletes?

A) They increase red blood cell production. B) They increase oxygen delivery to cells. C) They delay the onset of fatigue. D) They have no effect.

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