Network of tubes called Tracheae are the respiratory organs of

  1. Insects
  2. Earthworm
  3. Fishes
  4. Mussels

Answer (Detailed Solution Below)

Option 1 : Insects
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Detailed Solution

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The correct answer is Insects.

Key Points

  • 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.

Additional Information

  • Reptiles, birds, and mammals respire through the lungs.
  • Amphibians like frogs can respire through their moist skin.
  • Earthworms breathe through their moist skins(cuticle).
  • Fishes use gills for gas exchange.
  • Mussels breathe through their gills.

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