Presence of large number of alveoli around alveolar ducts opening into bronchioles in mammalian lungs is (C.B.S.E.1995)

Question

TuteeHUB · Accepted Answer

NA

TuteeHUB · Answer

Inefficient system of ventilation with little of residual air

TuteeHUB · Answer

Inefficient system of ventilation with high percentage of residual air

TuteeHUB · Answer

An efficient system of ventilation with no residual air

TuteeHUB · Answer

An efficient system of ventilation with little residual air.

Discussion