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. What do platelets do?

  • Help clot the blood
  • Produce antigens and antibodies
  • Carries oxygen
  • Hold food

4. What is plasma mostly made of?

  • Nitrate ions
  • Red blood cells
  • Water
  • Plasma

5. True or false, veins carry deoxygenated blood

  • True
  • False
  • Emilija
  • Yes
  • Arteries

Comments

Emilija

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HELLO

Ciara26

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ybjoby

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What a waste of time

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