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Question

Who uses spiracles to breathe?


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Solution

Spiracles:

  1. Spiracles are openings that help the insects to breathe.
  2. They help the air to move into the tracheal system in the insect.
  3. From the tracheal system, oxygen moves inside the blood and carbon dioxide moves out from the blood to the trachea.
  4. Certain cartilaginous fishes and some species of shark also breathe through spiracles.

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