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Question
The major difference between humoral immunity and cell-mediated immunity is that ______.
Options
humoral immunity is non-specific, whereas cell-mediated immunity is specific for particular antigens
the agents of humoral immunity are carried in the bloodstream, whereas the cells of the latter are concentrated in lymph nodes
humoral immunity cannot function independently; it is always activated by cell-mediated immunity
humoral immunity acts against free-floating antigens, whereas cell-mediated immunity works against pathogens that have entered body cells
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Solution
The major difference between humoral immunity and cell-mediated immunity is that humoral immunity acts against free-floating antigens, whereas cell-mediated immunity works against pathogens that have entered body cells.
