An _____ is any foreign substance that, when introduced into the body, activates the immune system.
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Q74: A helper _ cell is also called
Q75: Hodgkin's lymphoma is marked by the presence
Q76: AIDS indicator diseases are infections that do
Q77: Antibodies are also called _.
Q78: C-reactive protein test and erythrocyte sedimentation tests
Q80: During the inflammatory response, debris and dead
Q81: The cause of AIDS is HIV, a
Q82: Sjögren's syndrome often affects women during their
Q83: An _, or hypersensitivity, is an extreme
Q84: Allergy problems arise because the IgE binds
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