Ana made this table to show how the respiratory and circulatory systems work together.
Respiratory. Circulatory
takes in oxygen delivers oxygen to all parts of the body
and passes it to circulatory system
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breathes out gaseous waste produced by cells
Which sentence should be added to the column labeled “Circulatory”?
A. includes the windpipe and lungs
B. adds oxygen to the blood
C. controls air flow through the diaphragm
D. picks up wastes from cells and delivers to lungs