Other questions in this quiz

2. What happens when you breathe in?

  • The diaphragm moves down and the ribs move up and out
  • The diaphragm moves up and the ribs move in and down

3. what needs a respiratory system because the diffusion of oxygen through the surface would be too slow?

  • Large animals
  • Small animals

4. What happens to the volume of the thorax when you breathe in?

  • Increases
  • Decreases

5. The thin wall of the alveoli means that gas can pass through..

  • Easily and quickly
  • Slowly

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