Multiple Choice
Autoimmune diseases such as arthritis become more common as people get older. "Autoimmune" means that the immune system
A) no longer produces antibodies.
B) destroys the body's own tissues.
C) is incapable of initiating phagocytosis.
D) produces T cells but no B cells.
E) protects itself.
Correct Answer:

Verified
Correct Answer:
Verified
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