A deficiency of vitamin A, in addition to causing visual problems, might also lead to ____.?
A) ?muscular problems
B) ?cardiovascular disease
C) ?impaired height and improperly developed bones
D) ?damage to the choroid layer of the eye
C
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Which type of white blood cell can become either a memory cell or a plasma cell to be used in a specific immune response?
A. T cell B. B cell C. natural killer cell D. erythrocyte
Selenium is a component of enzymes that help regulate which hormone?
a. thyroid b. estrogen c. insulin d. antidiuretic (ADH)
When protein is needed for energy, the nitrogen-containing amino group is removed in a process called _____
a. deamination b. catabolism c. metabolism d. transamination
After the pancreatic juices have mixed with chyme in the intestine, the resulting mixture is:
a. very acidic. b. slightly acidic. c. strongly alkaline. d. slightly alkaline.