If a person has been exposed to hundreds of different pathogens in his or her life, antibody-mediated immunity means that the person has hundreds of different:
A) B cells.
B) mast cells.
C) eosinophils.
D) macrophages.

Question

Quizplus · Accepted Answer

Antibody-mediated immunity involves the production of antibodies by B cells. Each B cell is specific to a particular antigen (pathogen), so exposure to hundreds of different pathogens would result in the person having hundreds of different B cells, each tailored to a specific pathogen.

If a Person Has Been Exposed to Hundreds of Different