Immunity that results from exposure to an antigen in the environment is called ________ immunity.
A)naturally acquired active
B)natural passive
C)passively acquired
D)automatically acquired
E)innate

Question

Quizplus · Accepted Answer

Naturally acquired active immunity results from a person being exposed to an antigen, either through an infection or through vaccination. This exposure stimulates the immune system to produce an immune response, including the production of antibodies against the antigen. This type of immunity is considered "natural" because it occurs as a result of natural exposure to a pathogen or vaccine.

Immunity That Results from Exposure to an Antigen in the Environment