Answer:
The correct answer is respiratory system.
Step-by-step explanation:
The waste gas that is generated when carbon gets combined with oxygen as a component of the body's energy-producing procedures is carbon dioxide. The respiratory system and the lungs permit oxygen in the air to get inside the body, and at the same time allows the body to withdraw carbon dioxide into the air.
The term, which is used for the exchange of oxygen from the surrounding's carbon dioxide from the cells of the body is respiration. The procedure of taking air into the lungs is known as inspiration, and the procedure of breathing it out is known as expiration.