Respuesta :
Answer:
B. External respiration
Explanation:
Respiration means transport of oxygen to the cells within tissues, and the transport of carbon dioxide in the opposite direction.
Answer: Option B.
External respiration.
Explanation:
External respiration is also called breathing and it occurs in the lungs. It refer to a process where oxygen is inhaled and diffuse into the blood to body tissues and carbon dioxide is expelled out in the air.