Impairment of T-cell function can lead to increased susceptibility to bacterial infection because
A. T cells help fully activate B cells.
B. T cells help trigger class switching.
C. T cells help regulate antigen presentation by dendritic cells.
D. Both A and B.
E. All of the above.
D
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Which of the following statements is correct?
A. White fibers have a great capacity for aerobic work. B. Slow-twitch fibers produce great overall force. C. Slow-twitch fibers are utilized first during a muscle contraction. D. Red fibers have a great capacity for anaerobic work. E. To activate slow-twitch fibers, the activity must be intense and powerful.
Prevention of nystagmus is aimed at curing or preventing the cause
Indicate whether the statement is true or false
Which of the following terms end in a suffix meaning enzyme?
A. Secretion B. Peristalsis C. Buccinators D. Lipase E. Bolus
Radiation exposure that causes cancer can come from
A) fluorescent lights. B) natural gas furnace. C) sunlight. D) non-iodizing radiation.