Body systems

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