Multiple Choice
IgM is the:
A) first antibody produced when an invading microorganism is initially encountered.
B) antibody that is associated with various parasitic infections.
C) antibody that is secreted in various body fluids and primarily protects those body surfaces lined with mucous membranes.
D) second antibody produced when an invading microorganism is initially encountered and the most abundant.
Correct Answer:

Verified
Correct Answer:
Verified
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