The biological value of a food protein is a measure of ________.
A. the total amount of nitrogen in the blood
B. how much of the food one eats
C. how closely it meets amino acid needs
D. the weight gained by a growing rat after eating the food protein for 10 days
Answer: C
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The 2006 WHO growth charts are based on longitudinal and cross-sectional data of _____.
A. preterm and full-term infants B. low-birthweight and normal-birthweight infants C. exclusively or predominantly breastfed infants D. formula-fed infants E. infants fed equal amounts of formula and breast milk
Approximately ________ of iron used each day is recovered and recycled.
A. 90% B. 75% C. 25% D. 10%
What is one function of the pyloric sphincter?
a. Secretes acid into the stomach b. Secretes hormones into the stomach c. Prevents the contents of the small intestine from backing up into the stomach d. Prevents the contents of the small intestine from emptying too quickly into the colon
Physical activity during pregnancy can improve fitness, facilitate labor, and reduce psychological stress
a. True b. False Indicate whether the statement is true or false