Question

Which antibody is found in secretions of the body and prevents pathogens from entering the body?

1) IgA
2) IgG
3) IgM
4) IgE

Answer 1

IgA is the antibody found in secretions of the body that prevents pathogens from entering the body.

Step-by-step explanation:

The antibody found in secretions of the body that prevents pathogens from entering the body is IgA. It is present in mucus secretions, tears, breast milk, saliva, and other bodily fluids that protect mucous membranes. IgA traps pathogens in mucus, preventing them from entering the body