Answer: Option C
Internal respiration is the exchange of gases between the blood and tissue.
Explanation:
Respiration is the process of inhaling oxygen from the outside environment to the cells, tissues and exhaling carbon dioxide. It is also called breathing.
Respiration is also classified into internal respiration and external respiration.
Internal respiration is the exchange of gases between the blood and tissue fluids.
External respiration is the exchange of gases(oxygen and carbondioxide) between the air that is inhaled and the blood.
