Upon which of the following is passive immunity dependent?
A) a person's own immune system producing antibodies
B) antibodies made by another organism
C) antibody-producing cells from another organism
D) antigens from a person's own body

Question

Quizplus · Accepted Answer

Passive immunity is dependent on antibodies that are made by another organism and transferred to an individual, such as antibodies from breast milk or injected as a therapy. It is different from active immunity, which relies on an individual's own immune system producing antibodies in response to exposure to antigens.

Upon Which of the Following Is Passive Immunity Dependent