Biology, asked by Aalokranjan, 1 year ago

rings of cartilage are present in trachea explain why

Answers

Answered by kapil45279

2

Answer:

(i) Rings of cartilage are present in trachea to prevent it from

collapsing when less air is present in it.

(ii) Lungs always contain a residual volume of air so that there is sufficient time to absorb oxygen and release carbon dioxide.

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