Biology, asked by devshashankx86, 3 months ago

Wat are the smallest unit of respiration in the human body.

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Answered by Anonymous

Alveoli. An alveolar duct is a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli. An alveolus is one of the many small, grape-like sacs that are attached to the alveolar ducts.

Answered by Anonymous

Alveoli

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