In Active Immunity,but Not Passive Immunity,there Is

question 49

Multiple Choice

In active immunity,but not passive immunity,there is

• A)acquisition and activation of antibodies.
• B)proliferation of lymphocytes in bone marrow.
• C)the transfer of antibodies from the mother across the placenta.
• D)the requirement for direct exposure to a living or simulated pathogen.
• E)the requirement of secretion of cytokines from T cells.

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