Social Sciences, asked by adfg9573, 9 months ago

Explain the significance of branching of the tracheal system into fine tubes in an insect

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Answered by Vivek2011

Answer:

Because the exoskeleton is impermeable respiratory gases must move into the insect through a series of internal tubes called tracheae or tracheal tubes. These tracheae are highly branched helping to increase the Surface area : volume ratio available for gas exchange.

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