Question

the air tubes of insects​

Answer 1

Air tubes of insectes are also called trachea which have many holes and are connected to the blood carrying tubes,these trachea contain oxygen from air and supply oxygen to blood which gives them energy

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Answer 2

Tracheal Breathing. Insects, and some other invertebrates, exchange oxygen and carbon dioxide between their tissues and the air by a system of air-filled tubes called tracheae. Tracheae open to the outside through small holes called spiracles.