How do most insects respire? (a) Through skin (b) Through gills (c) By lungs (d) By tracheal system

Monjur Alahi

How do most insects respire?

(a) Through skin (b) Through gills (c) By lungs (d) By tracheal system


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Salim Ahmed Kawsar

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(d) Most insects respire through tracheal system that lies on a network of small tubes that channel O2 directly to the different part of the body. The tracheal system is composed of chitin-ringed tubes called trachea that connect directly to the air through opening in the body wall called spiracles.

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