Rank the carbon dioxide level in each stage from highest to lowest

(1) External (pulmonary) respiration - Exchange of gases between the alveoli of the lungs and the blood in pulmonary capillaries across the respiratory membrane. (2) Pulmonary Ventilation - inhalation and exhalation of air and happen the exchange of air between the atmosphere and the alveoli of the lungs (3) Internal (tissue) respiration-. capillaries and tissue cells.