Which of the following vitamins can promote intestinal absorption of calcium and phosphorus?
A. A
B. K
C. D
D. Niacin
Answer: C
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Once the stimulus alters the receptor on the cell's membrane, what happens next?
A) A second messenger is activated on the inside of the cell. B) The membrane permeability is altered. C) Ion channels open, allowing ions to enter or exit. D) Any of these actions could happen next.
How much of the body's calcium resides within the ECF?
a. 0.1% b. 1% c. 10% d. 50% e. 99%
What is the function of thymosin?
A. Destroys damaged white blood cells B. Maturation of T-cells C. Activates lymphocytes in lymph nodes D. Destroys damaged red blood cells
The part of the ethmoid bone riddled with holes that provides passage for the olfactory nerves is the __________ plate.
Fill in the blank(s) with the appropriate word(s).