Which best describes how the digestive system compares to the respiratory system?
A. The digestive system removes waste, while the respiratory system breaks down food.
B. The digestive system provides food to cells, while the respiratory system provides oxygen for cells.
C. The digestive system provides oxygen for cells, while the respiratory system provides food to cells.
D. The digestive system moves food through the bloodstream, while the respiratory system removes waste.
Select your answer:
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