Body systems

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Across
  1. 5. The smallest blood vessel in your body
  2. 8. membrane-bound cell organelles that generate energy to power the cells
  3. 10. Circulate oxygen-rich blood throughout your body
  4. 11. Release waste off your body
Down
  1. 1. A group of atoms combined together
  2. 2. Are those required or essential for the system to perform its purpose
  3. 3. Delivers nutrients and oxygen to the cells in the body
  4. 4. A living individual that contains one or more cells
  5. 6. Organelles that involves in protein
  6. 7. All the living and nonliving things in the same environment
  7. 9. Regulates body activities using hormones