Other questions in this quiz

2. What is one reason why diffusion may be inadequate for some organisms to receive oxygen and get rid of waste substances?

  • The organism is too large
  • The organism's surface is thin
  • The organism has a high surface area to volume ratio
  • The organism is unicellular

3. Which vessel has less collagen, elastic fibres and smooth muscle?

  • Vein
  • Artery

4. Which vessel receives blood from the body and transports it to the right side of the heart?

  • Pulmonary Vein
  • Vena Cava (Superior and Inferior)
  • Pulmonary Artery

5. What are the valves called between the atria and the ventricles?

  • Atrioventricular valves
  • Semi lunar valves

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