Why Are the Second and Subsequent Responses to Antigen Exposure

question 36

Multiple Choice

Why are the second and subsequent responses to antigen exposure faster than the initial response?

• A)The antibodies of the secondary response are more efficient.
• B)The antibodies of the secondary response are less efficient.
• C)After the initial exposure, memory cells are present; they respond more quickly upon a second exposure to the antigen.
• D)After the initial exposure, the memory cells respond more slowly, as the pool of available cells has been diminished.
• E)Pathogens are generally weaker with the second exposure.

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