Answer:
External respiration: CO2 diffuses into the blood
Explanation:
External respiration is also called the pulmonary gas exchange. It refers to the diffusion of O2 from the air in the alveoli of the lungs to blood in pulmonary capillaries and diffusion of CO2 in the opposite direction from the capillary blood into the alveolar air. External respiration in the lungs is responsible for oxygenation of deoxygenated blood coming from the right side of the heart. The oxygenated blood is then returned to the left side of the heart.
Answer:
Humans put fertilizer on the crops for growth
Explanation:
Answer:
Explanation:
Bloodletting was proven to prevent illness and is widely used now.
Answer:
Answer is a body builder because they have to put out the most effort in the shortest amount of time
