Biology, 31.08.2019 20:00, emmat1220

Most living things need oxygen to survive. these two body systems bring oxygen into your body and then move to all your body parts. what are these two body systems?
a) respiratory and muscular
b) digestive and circulatory
c) respiratory and digestive
d) circulatory and respiratory

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Most living things need oxygen to survive. these two body systems bring oxygen into your body and th...