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Which one of the following is not one of the body’s nonspecific defense mechanisms?



Secretion of tears containing lysozyme.
Natural killer cells attacking virus-infected cells.
Secretion of mucus by vaginal epithelial cells.
Secretion of histamine by mast cells.
Binding of antigens to B-lymphocyte receptors.
Eosinophils attacking parasites.

2007-03-23 11:10:26 · 2 answers · asked by Anonymous in Science & Mathematics Biology

2 answers

I'll say tears. I'm not sure, though

2007-03-23 13:58:40 · answer #1 · answered by Anonymous · 0 0

binding of antigens to b-lymphocyte receptors. the immune system has to be previously sensitized to the specific antigen.

2007-03-23 14:12:33 · answer #2 · answered by bad guppy 5 · 0 0

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