Question : Presence of large number of alveoli around alveolar ducts opening into bronchioles in mammalian lungs is

Question : Presence of large number of alveoli around alveolar ducts o

1.	Question : Presence of large number of alveoli around alveolar ducts opening into bronchioles in mammalian lungs is
Answer» Inefficient system of VENTILATION with LITTLE of residual AIR Inefficient system of ventilation with HIGH PERCENTAGE of residualair An efficient system of ventilation with no residual air An efficient system of ventilation with little residual air Solution :An efficient system of ventilation with little residual air