Presence of large number of alveoli around alveolar duncts opening into bronchioles in mommanlian lungs isA. Inefficient system of ventilation with little of residual airB. Inefficient system of ventialtion with high percentage of residual airC. An efficient system of ventilation with no residual airD. An efficient system of ventilation with little residual air

Presence of large number of alveoli around alveolar duncts opening int

1.	Presence of large number of alveoli around alveolar duncts opening into bronchioles in mommanlian lungs isA. Inefficient system of ventilation with little of residual airB. Inefficient system of ventialtion with high percentage of residual airC. An efficient system of ventilation with no residual airD. An efficient system of ventilation with little residual air
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