THE HUMAN________ SYSTEM IS A SERIES OF ORGANS RESPONSIBLE FOR TAKI...
8. The human________ system is a series of organs responsible for taking in oxygen and
expelling carbon dioxide.
A. Circulatory
B. digestive
C. nervous
D. respiratory
8. The human________ system is a series of organs responsible for taking in oxygen and
expelling carbon dioxide.
A. Circulatory
B. digestive
C. nervous
D. respiratory