In active immunity, a person becomes immune to a pathogen as a result of having a disease.
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Q77: A primary immune response _, and a
Q78: Lymphatic capillaries are thin-walled, closed-ended tubes.
Q79: Innate defenses include mechanical and chemical barriers,
Q80: In the cellular immune response
A)B cells produce
Q81: The foreign, or "non-self" substances that trigger
Q83: An injection of synthetic antibodies imparts active
Q84: A substance that can stimulate a primary
Q85: Lymph is _ that has entered a
Q86: AIDS is caused by a virus that
Q87: _ are masses of partially encapsulated lymphatic
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