Other questions in this quiz

2. What are valves (in a blood vessel) used for?

  • Photosynthesis
  • To direct the flow of blood
  • To stop the blood from flowing
  • Transport

3. Do red blood cells have a nucleus?

  • No
  • Only the white ones
  • Yes
  • Only some

4. True or false, veins carry deoxygenated blood

  • Emilija
  • Arteries
  • False
  • True
  • Yes

5. What is plasma mostly made of?

  • Water
  • Red blood cells
  • Plasma
  • Nitrate ions

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Emilija

HELLO

Ciara26

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