Q.

How do most insects respire?

A. Through skin
B. Through gills
C. By tracheal system
D. By lungs
Answer» C. By tracheal system
Explanation: Insects do not have lungs to do respiration. In insects respiration takes place through tracheae. Tracheae are tube like structures that open on the sides of their body through tiny holes called spiracles.
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Owais Prasad Goyal
1 year ago

Thank you for the MCQ practice sets.
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