Choose the correct pathway for carbon dioxide as it moves from a blood cell to the outside of the body. SC.6.L.14.5
alveolus - bronchus - trachea - pharynx - nostrils
bronchus - trachea - pharynx - alveolus - nostrils
pharynx - alveolus - trachea - bronchus - nostrils
trachea - pharynx - bronchus -alveolus - nostrils