Body systems

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Across
  1. 4. helping to break down food and release energy
  2. 5. removal of waste products from the body
  3. 7. helping in breathing
  4. 8. messenger of the body system using nerves.
Down
  1. 1. system fighting against diseases and protecting us from infection.
  2. 2. system providing a frame to the body through bone structure.
  3. 3. system which circulates blood, haemoglobin, oxygen, plasma, water.
  4. 6. system used for reproduction