asked 229k views
1 vote
Responses of the immune system to usually

harmless environmental substances are known as
(1) antigen production
(2) chromosomal mutations
(3) pathogens
(4) allergies

asked
User Lannette
by
7.8k points

1 Answer

3 votes
The immune system over-reacts to normally harmless substances, the name of a substance or substances that cause these over-reactions are called allergies
answered
User Slvn
by
7.7k points
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