Passive immunity refers to...?
A. The prevention of infection by acquiring antibodies from outside the body.
B The prevention of infection by the making of memory cells during an initial exposure.
C. The production of blood-based antibodies by B-cells.
D. The killing of body cells that don't belong by T-cells.
E. The way antibodies mark pathogens for destruction.
- Anonymous6 years agoFavorite Answer