Which statement is true of body mass index?
a. It correlates with disease risks.
b. It decreases by 1 unit for every 10 years of life.
c. It provides an estimate of the fat level of the body.
d. It is defined as the person's height divided by the square of the weight.
e. Its absolute value is less important than the rate at which it changes.
ANS: A
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Which of the following is true of niacin?
a. Large doses of the nicotinic acid form can raise HDL cholesterol. b. Large doses of the nicotinic acid form can raise LDL cholesterol. c. Treatment for the deficiency disease, pellagra, often includes supplements of the amino acid leucine. d. Toxicity is unknown. e. High doses can treat liver diseases.
Which of the following statements is accurate?
a. formula-fed infants are ready for complementary foods at 4 months of age b. a delayed introduction of solid foods is recommended for infants with a family history of food allergies c. complementary foods high in iron and zinc are recommended for breastfed infants d. use of commercially prepared baby foods can reduce the risk of food allergy
Which of the following fluids is classified as extracellular fluid?
A. blood plasma B. lymph C. gastrointestinal fluid D. tears E. All of these choices are accurate.
In breastfeeding, the "let-down" hormone is called
A) oxytocin. B) lactation. C) prolactin. D) colostrum.