Respiratory structures in the insects are:

Gills

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Skin

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Lungs

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Tracheae

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Solution

The correct option is B Tracheae
Insects and some other invertebrates exchange oxygen and carbon dioxide between their tissues and the air by a system of air-filled tubes called the trachea. The trachea opens to the outside through small pores called spiracles.
So, the correct answer is option D.

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Similar questions

Which of the following is a respiratory structure for insects?

Insects develop a complex system of air tubes called trachea for respiratory purpose.

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