Question

Draw a diagram of human respiratory system and label - pharynx,
trachea, lungs, diaphragm and alveolar sac on it.
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Answer 1

Explanation:

What is respiration?

Respiration is the act of breathing in and breathing out. When you inhale, you take in oxygen. When you exhale, you give off carbon dioxide.

What makes up the respiratory system?

The respiratory system is made up of the organs involved in the interchanges of gases. It consists of the: