Anonymous Anonymous

25-01-2017
Social Studies

Answered

Which of the following body systems does the immune system rely on to provide the first line of defense against pathogens?

Aintegumentary system
Bnervous system
Ccirculatory system
Dendocrine system

Verified Answer :

adorkablepanda adorkablepanda

25-01-2017

I think it is A. integumentary system.

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