Which of the following hormones is secreted by the thyroid gland when blood levels of calcium are too high?
A. calcitonin
B. thyroxin
C. parathyroid hormone
D. T3
Answer: A
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Which of these nutrients are taken into the body without being broken down?
A. carbohydrates B. lipids C. proteins D. vitamins E. All except vitamins are absorbed without being digested first.
What statement is true about alcohol?
a. Women have a greater tolerance for alcohol than men. b. Alcohol is slowly absorbed from the gastric and intestinal mucosa. c. Cerebral effects of alcohol can reach brain cells within few minutes. d. Women produce more alcohol dehydrogenase, the gastric enzyme that breaks down alcohol.
Which of the following is NOT a benefit of physical activity?
A. promotes a healthy body composition and body weight B. reduces risk of bone, muscle, and joint injuries C. reduces risk of type 2 diabetes D. increases longevity
Which of the following has the best scientific evidence supporting the claim?
a. High-carbohydrate meals decrease appetite. b. Low-carbohydrate diets reduce fat intake. c. High-carbohydrate diets increase LDL cholesterol production. d. Very-low-carbohydrate diets can reduce short-term memory.