A deficiency of ____ in children is associated with retarded growth and sexual development
a. chromium
b. fluoride
c. zinc
d. iodine
e. cadmium
c
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The failure of the body to repair damaged DNA leads to the step in cancer development called:
1.initiation. 2.metastasis. 3.progression. 4.promotion.
Answer the following questions true (T) or false (F)
1. When food enters the stomach, the parietal cells produce hydrochloric acid (HCl) and a protein called intrinsic factor. 2. Passive diffusion, facilitated diffusion, active transport, or endocytosis facilitate nutrient absorption at the brush border of the small intestine. 3. The only site for absorption of water is the small intestine.
Why is water needed for peak physical performance, and how should someone adequately hydrate before, during, and after an event?
What will be an ideal response?
The major energy system used during 30 to 60 seconds of maximal intensity exercise is
A. ATP-Cr. B. anaerobic glycolysis. C. aerobic glycolysis. D. both ATP-Cr and aerobic glycolysis. E. both anaerobic glycolysis and aerobic glycolysis.