Organ System

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Across
  1. 3. ......protected our brain
  2. 5. A process of broken down our food into small substances.
  3. 6. we use our....to breath in and out
  4. 7. ......sytem help move substances around our body.
Down
  1. 1. ......system made up of muscle.
  2. 2. organ system that help us to keep our food before having process to small intestine
  3. 4. protected by our ribcage,one of respiratory system