Cassandra599
Answered

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Which disorder could develop in the human
body when the immune system attacks a usually
harmless environmental substance?
(1) cancer (3) an allergy
(2) AIDS (4) an infection

Sagot :

sbcardinals
Allergies (3) because they are the only disorder listed that is a result of the environment. 
bbyfacejada

Answer:

An allergy

Explanation:

I took a quiz on this

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