Mortalfinger99 Mortalfinger99

04-12-2017
Biology

contestada

An allergic response is NOT typically caused by

A. Harmless antigens
B. Pollen
C. Histamine
D. Both A and C

I'm conflicted because histamine causes the physical response but pollen and harmless antigens cause histamine

Respuesta :

lakynspergin lakynspergin

04-12-2017

I think the answer is D. Both a and b

Answer Link

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