How much alcohol consumption has been proven to be safe during pregnancy?
a. No amount of alcohol has been proven to be safe.
b. 1 glass of wine or beer per day has been proven to be harmless.
c. 2 glasses of wine or beers per day have been proven to be harmless.
d. No studies have been done regarding alcohol and pregnancy.
a
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Among adolescents, smoking is MOST associated with
A) elevated mood. B) increased appetite. C) overweight and obesity. D) increased participation in other risky behaviors.
Which of the following is a characteristic of lactate production by muscle cells?
a. It occurs only during intense exercise b. When rapid it causes muscle fatigue c. The lactate produced may eventually be used by the liver for glucose production d. It lowers the pH of the muscle cell, thereby lowering muscle performance.
Why is selenium important in the body and why might it be used to treat cancer?