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MCAT Question A Day - 8/23/14 - Answer!

Humoral immunity involves the action of:

A.  cytotoxic T lymphocytes.
B.  stomach acid.
C.  pancreatic enzymes.
D.  immunoglobulins.

D is correct. Immunoglobulins, or antibodies, are involved in the humoral immune system, or the B cell systemA is out because cytotoxic T cells work in cell mediated immunity. B is out because stomach acid plays role in the nonspecific innate immunity; humoral immunity is specific and acquired. C is irrelevant.

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