Question

question 9
1 pts
allergies are due to
not enough antibodies formed.
an excess number of antigens.
an excess number of antibodies formed.

Explanation:

Allergies occur when the immune system over - reacts to a harmless substance (allergen). In this over - reaction, the immune system produces an excess number of antibodies (specifically IgE antibodies) against the allergen.

Answer:

an excess number of antibodies formed.