Human Machine

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Across
  1. 1. controls the body
  2. 4. moves body parts
  3. 7. send messages to and from the brain
  4. 8. the back of the eye
Down
  1. 1. give the body structure
  2. 2. gets bigger and smaller to let light in
  3. 3. connects muscles to bones
  4. 5. the lens that focuses what the eye sees
  5. 6. gives eye its color