Your Excretory System, I think.
skin i think
permits the easy exchange of gases
to exchange gases in the body.
This body system that is responsible for the exchange of gases between the blood and the external environment.
Elephant 's exchange gases from the air can enter into Elephant body it mouth lungs have a unique mutually
Respiratory
The exchange of gases between the body and the environment is called respiration. This process involves the inhalation of oxygen and the exhalation of carbon dioxide.
Intracellular respiration
No. The exchange of gases between the blood and tissue cells is called internal respiration. External respiration refers to the exchange of gases between the blood and the air inside of the alveoli of the lungs.
The respiration system adopts to the surface area to volume ratio to help the exchange of gases.
through respiration
capillaries