Why Is a Secondary Immune Response Stronger

question 142

Multiple Choice

Why is a secondary immune response stronger?

• A)Effector cells produced during the primary response are still present circulating in the blood.
• B)Antibodies produced during the primary response are still present circulating in the blood.
• C)Body cells develop resistance to the pathogen.
• D)Body cells are primed to produce antibodies against the pathogen.
• E)Exposure to a previously encountered antigen gives rise not only to effector cells but also to clones of long- lived memory T cells and memory B cells.

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