Digestion of protein begins in the:
1.mouth.
2.large intestine.
3.small intestine.
4.stomach.
4
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If a scientist wants to design an experiment to measure the effect of vitamin C on colds, which of the following would be an appropriate placebo?
A) the recommended daily amount of vitamin D B) half the recommended daily amount of vitamin C C) the recommended daily amount of vitamin C D) a sugar pill that does not contain vitamin C
The introduction of iodized salt in the 1920s dramatically reduced rates of ________ in the United States.
A. hypogonadism B. pellagra C. goiter D. anemia
The majority of vitamin A is stored in the liver, while carotenoids are stored mainly in the ____ tissue.?
A) ?muscle B) ?eye C) ?adipose D) ?skin
Food irradiation has been approved by the USDA.?
Indicate whether the statement is true or false