Answer:
External, Internal, and Cellular Respiration
Step-by-step explanation:
-Three types of respiration include internal, external, and cellular respiration.
-External respiration is the breathing process. It involves inhalation and exhalation of gases.
-Internal respiration involves gas exchange between the blood and body cells.
-Cellular respiration involves the conversion of food to energy. Aerobic respiration is a cellular respiration that requires oxygen while anaerobic respiration does not.