Question

the air tubes of insect​

Answer 1

Answer:

in their nose............

Answer 2

Answer:

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. In the grasshopper, the first and third segments of the thorax have a spiracle on each side

may be this will help you