Jonathan is on his school's cross-country ski team. He finds that his weight drops about 1 pound after skiing for a few hours. What accounts for this difference?

a. Jonathan has lost one pound of body fat.
b. Jonathan has lost one pound of muscle tissue.
c. Jonathan has lost two cups of fluid.
d. Jonathan has lost some bone and some fat.


c

Nutritional Science

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?-dextrinase is also called ____

A) ??-amylase B) ?isomaltase C) ??-amylase D) ?lactase

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Patient X is being evaluated for heart failure. She is demonstrating signs of dyspnea, fatigue, and poor cold adaptation. Imaging tests have demonstrated structural changes to her heart. What stage of heart failure would be assigned to her present condition?

a. D b. A c. C d. B

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Less than 30% of the world's corn is grown in the United States

Indicate whether the statement is true or false

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Lactase persistence is an example of a human adaptation that arose within the last 10,000-11,000 years in response to a cultural change

a. true b. false

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