elizabethidether1 elizabethidether1

17-11-2016
Biology

contestada

The immune system is a network of cells, tissues, and organs that help ___________.
(A) Remove waste
(B) Defend the body
(C) Get energy
(D) Take in oxygen

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zhuntercam zhuntercam

17-11-2016

I am pretty sure it is b I am 98% sure

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daleandjade daleandjade

17-06-2018

the right answer is: Defend the body

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