Puzzle Easy Easy

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Across
  1. 2. trainee or intern
  2. 4. people study about fossil
  3. 7. drug use to kill virus
  4. 9. happiness hormone
  5. 11. half of brain
  6. 14. bad decease (long term illness)
  7. 19. alternative treatment
  8. 21. part of body
  9. 22. without skin (only bone)
Down
  1. 1. when not eat enough food
  2. 3. animal that have strong shell live in the oceans
  3. 5. to identify illness
  4. 6. from other galaxy
  5. 8. Wednesday star
  6. 10. small structure in the park
  7. 12. baby trees
  8. 13. animals dung
  9. 15. fruit farm
  10. 16. roof of the forest
  11. 17. water around palace
  12. 18. lung disease
  13. 20. a large group of soldier