The hormone oxytocin ________.
A. suppresses energy metabolism during pregnancy
B. enables the "let-down" reflex to occur when a woman breastfeeds her baby
C. increases a woman's appetite during pregnancy
D. reduces the ability of blood to clot during the birth process
Answer: B
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According to scientific evidence, which of the following substances may improve the performance of sprinters and weight lifters?
A. Bee pollen B. Chromium C. Creatine D. Vitamin E
Which of the following is NOT a feature of the bile acids?
a. Stored in the gallbladder b. Synthesized from cholesterol c. Manufactured by the gallbladder d. Released into the small intestine whenever fat is present
________ is the average length of time a person born in a specific year can expect to live.
A. Healthy life span expectancy B. Longevity C. Life expectancy D. Life span
Studies have shown that regular endurance training ____
A) eliminates the risk for becoming hypertensive B) reduces the risk for becoming hypertensive C) increases the risk for becoming hypertensive D) has no effect on risk for becoming hypertensive