What is the relationship between the circulatory and respiratory systems?
A. They work together to store the waste that blood collects from the body.
B. They work together to supply oxygen to tissues and rid the body of carbon dioxide.
C. The circulatory system provides oxygen that the respiratory system uses to fill the lungs.
D. The respiratory system provides blood that the circulatory system uses to transport nutrients.
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
