Cholesterol is the predominant sterol in animal's cell membranes and it is the parent for the synthesis of ____.
a. testosterone.
b. progesterone.
c. estradiol.
d. all of the above
Answer: d. all of the above
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The best action to take to decrease your risk of cancer is to: a. limit foods that are grilled, smoked, and charbroiled
b. consume a diet moderate in fat. c. take vitamin supplements. d. eat a wide variety of vegetables and fruits in generous quantities every day. e. eat fatty fish several times a week.
Having excess body fat increases the risk of
A. esophageal cancer. B. osteomalacia. C. beriberi. D. macular degeneration.
How did the history of Iran, the most Eastern of the Middle Eastern countries, affect the Persian cuisine?
Which mineral helps muscles to relax after contraction and tooth enamel to retain calcium?
a. fluoride b. potassium c. magnesium d. zinc e. iodine