Multiple Choice
Which statement correctly describes the relationship between antibodies and antigens?
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What are the three classes of lymphocytes, and where does each class originate?
A decrease in which population of lymphocytes would impair all aspects of an immune response?
(a) Cytotoxic T cells
(b) Helper T cells
(c) Regulatory T cells
(d) B cells
(e) Plasma cells
Perforins are proteins associated with the activity of
(a) T cells
(b) B cells
(c) NK cells
(d) Plasma cells