Light breaks down rhodopsin.
Answer the following statement true (T) or false (F)
True
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The most important stimulus for contraction of the gallbladder is
a. CCK b. mechanical contraction of the small intestine c. sympathetic stimulation d. an increase in bile secretion by the liver e. bile salts
Which of the following vitamins are thought to play a role in decreasing the physiological changes in aging?
A. Vitamins A and B12 B. Vitamins A and K C. Vitamins E and C D. Vitamins A and B6 E. Vitamins A and D
Alpha and beta interferons will inhibit ________.
A. activity of natural killer cells B. viral replication and assembly C. growth of cancer cells D. All of the choices are correct.
Because of their location, swollen palatine tonsils may interfere with
A. both breathing and swallowing. B. swallowing only. C. breathing only. D. neither breathing nor swallowing.