Jericho p4a

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Across
  1. 2. what system works with the bones
  2. 4. allows exchange of gases
  3. 7. what protects heart
  4. 8. what protect brain
  5. 9. what system control all body function
  6. 10. what is a collection of cells
Down
  1. 1. what system breaks down food
  2. 3. what system transport blood around the body
  3. 5. what type of bone is made of 33 bones
  4. 6. what is the smallest unit of life