Biology - Gas exchange in other organisms

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1. why are there rigid rings in the trachea on an insect?

  • to replace the absent cell wall
  • to keep air passages open
  • to keep cells rigid
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Other questions in this quiz

2. Air enters an insect through holes called

  • Filaments
  • Spiracles
  • Mouth
  • Trachea

3. Where do the entrance holes take the air to in an insect?

  • the aleoli
  • the lungs
  • trachea and then into tracheoles
  • the alveoli

4. What system is in place in the fish in order to maintain a diffusion gradient?

  • counter-current system
  • pulmonary ventilation system
  • inhalation maintenance system

5. Where these entrance holes located on the insects body

  • In their mouth
  • Along the side of their body
  • By their rectum
  • All over the body


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