Responses of the immune system to usually harmless environmental substances are known as (1) antigen production (2) chromosomal mutations (3) pathogens (4) allergies

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Slvn · Answer 1 · 2016-04-07T03:30:53+0000

The immune system over-reacts to normally harmless substances, the name of a substance or substances that cause these over-reactions are called allergies

Responses of the immune system to usually harmless environmental substances are known as (1) antigen production (2) chromosomal mutations (3) pathogens (4) allergies

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