A compensatory survival mechanism intended to conserve energy in the face of starvation is known as _______________.
Fill in the blank(s) with the appropriate word(s).
adaptive thermogenesis
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Noncoding segments of DNA vary in composition based on _____
a. changes in chromosomes b. increased or decreased circulation c. other genes d. environmental factors e. weight
Which of the following is a true statement regarding the function of creatine phosphate (CrP)?
a. It functions in exactly the same way as ATP; there is just less CrP in cells b. CrP directly powers muscle contraction c. CrP rapidly replenishes ATP d. All of the above
Kevin was a participant in a clinical study to determine how much niacin cures pellagra, the niacin deficiency disease. During the study, he consumed only a formula diet that was deficient in niacin. After developing pellagra, he was given 2 mg of niacin a day for 2 weeks, but he still suffered from the disease, so the scientists added 2 mg of the vitamin to Kevin's formula. By the beginning of the 5th week of the study, the researchers noticed that Kevin's signs and symptoms were greatly improved. At the end of the 5th week, he was feeling fine. The researchers concluded that
A. Kevin's niacin requirement was about 4 mg a day. B. Kevin's daily value for niacin was 4 mg a day. C. the RDA for niacin should be 4 mg. D. the AI for niacin should be 4 mg, plus 60 mg as a margin of safety.
Dan's grandfather has a goiter. The goiter could be the result of _____
a. iodine deficiency but not iodine toxicity b. either an iodine deficiency or iodine toxicity c. either iodine deficiency or an enzyme imbalance d. iodine toxicity but not iodine deficiency