The air sacs which make up most of the lungs of mammals are known as what?
Alveolar Air sac Aveoli Alveolus ALVEOLI Respiratory sac Lung alveoli Pulmonary alveolus Alveolars Air Sac Alveoli Pulmonary Alveolus Alveolae Pulmonary alveoli Alveolar sac
pulmonary alveoli alveolae alveoli alveolars alveolar sac pulmonary alveolus aveoli lung alveoli alveolus respiratory sac air sac alveolar
alveoli
WikipediaEntity
ALVEOLI