Cell-mediated immunity involves the production of activated __________, which directly attack unwanted cells
Indicate whether the statement is true or false
T lymphocytes
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One characteristic that centenarians share is
A) a high level of exercise throughout life. B) never having smoked. C) following the Mediterranean diet. D) long-lived relatives.
Motor neurons of the autonomic nervous system
A. always excite effector organs. B. always inhibit effector organs. C. do not excite effector organs but monitor their status of activity. D. can either excite or inhibit effector organs.
The gas law that describes the pressure changes that occur during pulmonary ventilation is
a) Boyle's law b) Charles' law c) Henry's law d) The inhalation law e) The law of partial pressure
When sodium ions are reabsorbed through the wall of the renal tubule by active transport, chloride ions are
A. secreted by active transport. B. reabsorbed by passive transport. C. reabsorbed by active transport. D. secreted by passive transport.