Chapter 21 Crossword

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Across
  1. 1. – protein coat that protects a virus
  2. 3. – process where bacteria split into two cells
  3. 5. – change in DNA
  4. 8. – cycle where viral DNA hides in the host
  5. 10. – hair-like structures used for attachment
  6. 11. – long whip-like structure used for movement
  7. 13. – cycle where a virus destroys the host cell
  8. 14. – parasitic protist that can cause malaria
  9. 17. – reproductive cell of fungi
  10. 18. – tough material in fungal cell walls
  11. 19. – single-celled fungus used in baking
Down
  1. 2. – material in bacterial cell walls
  2. 4. – illnesses caused by viruses
  3. 6. – thread-like structures in fungi
  4. 7. – virus that uses RNA to make DNA
  5. 9. – tiny hair-like structures used for movement
  6. 12. – plant-like protists that do photosynthesis
  7. 14. – single-celled or simple organism that is not a plant, animal, or fungus
  8. 15. – organism that breaks down dead matter
  9. 16. – single-celled organisms that live in extreme environments