Madhya Pradesh Police Exam Model Paper 3

The correct answer is Insects.

• All living organisms respire to get energy from food.
• The process of breakdown of food in the cell with the release of energy is called cellular respiration.
• A network of tubes called tracheae are the respiratory organs of insects.
• Tracheal tubes help insects to transport atmospheric air within the body.
• Oxygenated air rushes through spiracles into the tracheal tubes, diffuses into the body tissue, and reaches the body cell.
• Carbon dioxide from the cells moves to the tracheal tubes and moves out through spiracles.