Biology Crossword

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Across
  1. 3. begins the process of digestion
  2. 4. helps with filtration
  3. 6. the bone that hurts a lot when hit
  4. 7. exerts carbon dioxide
  5. 11. Processes substances
  6. 13. rumbles when you’re hungry
  7. 15. absorbs nutrients
Down
  1. 1. critical to standing up
  2. 2. helps digest food after the stomach
  3. 5. carries nerve signals
  4. 8. sensory input
  5. 9. helps circulate blood
  6. 10. cpu of the body
  7. 12. helps you breathe
  8. 14. circulate blood thoughout body