Answer;
The respiratory system supplies the oxygen that the cardiovascular system transports to the different cells for the production of energy.
Step-by-step explanation;
-The function of the respiratory system is to add oxygen to the blood and remove carbon dioxide.
-The circulatory system carries blood throughout the body via an intricate network of arteries and veins.
-The respiratory and circulatory systems bring oxygen and nutrients to the cells. Both systems work together to maintain homeostasis.