Question

air tubes of insect
a . ribs
b . trachea
c . lung​

Answer 1

Answer:

b. trachea

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Answer 2

Explanation:

TRACHEA (OPTION B)

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.