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Mutation of bacterial strains is a factor in the development of antibiotic-resistant bacteria.

A) True
B) False

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Pathogens must invade the body's cells to cause symptoms.

A) True
B) False

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Lymphocytes generated during an initial infection that circulate in the body for years and quickly destroy that infection if it ever appears again are called ______ cells.


A) killer T
B) helper T
C) suppressor T
D) memory T

E) B) and D)
F) All of the above

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Cell-mediated immune response


A) is a function of killer T cells.
B) is a function of B cells.
C) stimulates the production of antibodies.
D) uses antibodies to recruit macrophages to help clean up.

E) C) and D)
F) B) and D)

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A serum that contains a variety of antibodies and is injected to provide temporary immunity is called


A) plasmA.
B) gamma globulin.
C) an antiviral.
D) immunotherapy.

E) C) and D)
F) A) and C)

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