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Home Q & A Board Biology-Related Homework Help Cell Biology
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7 years ago
Vaccines are composed of ________ that stimulate an active immunity to the pathogen.
A) the non-pathogenic portion of the microorganism
B) memory B cells that respond to a microorganism
C) antibodies to a microorganism
D) memory T cells that respond to a microorganism
E) the pathogenic portion of the microorganism
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