Which of the following structures enables the exchange of gases in insects?

Explanation

Insects have a tracheal respiratory system in which oxygen and carbon dioxide travel primarily through air-filled tubes called tracheae.

Malpighian tubules (MTs) are the primary excretory organs in most insects, and they have a number of uses, including excretion.They are responsible for producing primary urine and removing toxic compounds and excretion products.

Flame cells are not used in insects, but they are used in other invertebrates, such as flatworms, rotifers, and nemerteans.

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