Chapter 21 Crossword Puzzle

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Across
  1. 2. Man's best friend
  2. 4. Has a trunk
  3. 9. Likes to chase mice
  4. 11. – Tiny hairs for movement
  5. 12. – Virus that uses RNA to make DNA inside a host cell
  6. 13. – Thread-like fungal structures
  7. 16. – Single-celled fungus used in baking
  8. 17. – Moves using cytoplasm
  9. 18. – Animal-like protists
  10. 20. diseases – Illnesses caused by viruses
  11. 22. – Cycle where viral DNA hides in the host
  12. 23. – Change in bacterial DNA
Down
  1. 1. – Long tail for movement
  2. 3. Flying mammal
  3. 5. – Plant-like protists that do photosynthesis
  4. 6. – Cycle where a virus destroys the host cell
  5. 7. – Breaks down dead organisms
  6. 8. fission – How bacteria reproduce
  7. 9. – Process where bacteria exchange DNA
  8. 10. – Reproductive cell of fungi
  9. 14. – Material in bacterial cell walls
  10. 15. – Protein coat that protects a virus
  11. 18. – Hair-like structures for attachment
  12. 19. – Tough material in fungal cell walls
  13. 21. Large marsupial