asked 162k views
1 vote
The ____________ systems are most responsible for providing cells with oxygen and removing the carbon dioxide.

A) excretory and muscular
B) digestive and excretory
C) skeletal and respiratory
D) circulatory and respiratory

asked
User Dansp
by
7.6k points

1 Answer

3 votes

D. circulatory and respiratory.

answered
User Lazy Lion
by
8.1k points
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