Question

A series of tubes which carry air directly to cells for gas exchange


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Answer 1

Explanation:

Tracheae

Tracheal Systems

Tracheae are these tubes that carry air directly to cells for gas exchange. Spiracles are openings at the body surface that lead to tracheae that branch into smaller tubes known as tracheoles. Body movements or contractions speed up the rate of diffusion of gases from tracheae into body cells.

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Answer 2

Answer:

tracheal system

Explanation:

it is series of tube that carries air directly to cells for gas exchange

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