health and food

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Across
  1. 1. a living creature
  2. 5. the organs in the body which protect us from illnesses
  3. 8. causes somebody to become sick after eating specific food
  4. 12. to make somebody well again
  5. 13. a small tube that carries blood to different parts of the body
  6. 14. to move air into and out of the lungs
  7. 17. to become worse because of being badly affected by something
  8. 18. the ability to hold a number of things
  9. 19. self-confidence
  10. 20. to suddenly force air out through your nose and mouth with a loud noise because of a cold
  11. 21. a piece of paper you are given after paying for goods
Down
  1. 2. a change in the body which shows that a disease is present
  2. 3. absolutely necessary for something
  3. 4. a body tissue that contract and produce movement
  4. 6. the condition of not being able to sleep
  5. 7. helpful effect
  6. 9. to become larger and taller as time passes
  7. 10. to cure a patient of a disease
  8. 11. the process in which a doctor cuts into somebodys body in order to remove a diseased part
  9. 15. food containing a lot of nutritious substances
  10. 16. to become thinner