Question

Describe structure of human respiratory system​

Answer 1

Explanation:

Human Respiratory System

The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs. There, in very small air sacs called alveoli, oxygen is brought into the bloodstream and carbon dioxide is pushed from the blood out into the air.

Answer 2

Answer:

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Explanation:

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