Ecology Crossword

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Across
  1. 3. nine
  2. 6. twelve
  3. 8. ten
  4. 10. five
  5. 11. sixteen
  6. 13. eighteen
  7. 14. seventeen
  8. 17. seven
  9. 18. fourteen
  10. 19. two
Down
  1. 1. twenty
  2. 2. six
  3. 3. four
  4. 4. nineteen
  5. 5. twenty two
  6. 6. thirteen
  7. 7. fifteen
  8. 9. three
  9. 12. eight
  10. 15. twenty one
  11. 16. eleven
  12. 19. one