-ist & -ology

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Across
  1. 3. one who draws cartoons
  2. 5. the study of fossils and ancient life
  3. 6. one who studies the Earth and rocks
  4. 10. the study of how living things interact with their environment
  5. 12. the study of the mind and behavior
  6. 13. one who writes news stories
  7. 15. the study of the heart
  8. 16. the study of hearing and sound
  9. 18. one who types
  10. 19. one who works with and sells flowers
Down
  1. 1. the study of skin
  2. 2. one who plays the main character in a story
  3. 4. the study of living things
  4. 7. one who sings
  5. 8. the study of myths and traditional stories
  6. 9. one who studies or works with chemicals
  7. 11. one who opposes or struggles against another (especially in a story)
  8. 14. the study of stars and how they are believed to influence people
  9. 16. one who studies and treats allergies
  10. 17. the study of codes and secret writing