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Presence of large number of alveoli arou...

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

A

Inefficient system of ventilation with little of residual air

B

Inefficient system of ventilation with high percentage of residual air

C

Efficient system of ventilation with no residual air

D

Efficient system of ventilation with little residual air

Text Solution

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The correct Answer is:
D
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