a

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Across
  1. 1. blood vessels that carry blood back to the heart
  2. 3. substances in food that help the body grow
  3. 5. body parts that help you move
  4. 7. an organ that helps break down food
  5. 10. to breathe air into your lungs
  6. 12. a gas the body needs to survive
  7. 13. the organ that controls thinking and movement
  8. 14. blood vessels that carry blood away from the heart
Down
  1. 2. long tubes where nutrients are absorbed
  2. 4. the red liquid that carries oxygen in the body
  3. 6. organs that help you breathe
  4. 8. the organ that pumps blood through the body
  5. 9. hard parts that support your body
  6. 11. to breathe air out of your lungs