Body Systems

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Across
  1. 4. organ system that breaks down food for the body to use
  2. 5. the system made up of the heart, blood and blood vessels
  3. 6. controls actions and reactions
Down
  1. 1. primary purpose is to take in oxygen and expel carbon dioxide
  2. 2. movement and flexibility
  3. 3. primary purpose is to remove wastes from the body