Answer: Respiratory
Explanation:
The process that is responsible for the exchange of oxygen and carbon dioxide in the body is respiration. It involves two processes in it.
One is inspiration and other one is expiration. The inspiration can be defined as intake of oxygen and expiration is expel of carbon dioxide out of the body.
The exchange of oxygen to the cells and carbon dioxide from the cells to the lungs takes place by the process of diffusion through the respiratory system.