Which of the following best defines the term antigens?
A) Foreign substances, cells, or microbes that invade the body and activate an immune response
B) Special proteins produced by the body in response to an invading microbe
C) Cells of the body that engulf and destroy invading bacteria
D) Agents used to treat bacterial diseases
Correct Answer:
Verified
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Q23: What type of body cells makes antibodies?
A)Brain
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