21.1-21.4 crossword

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Across
  1. 3. Random changes in DNA
  2. 9. Heterotrophic eukaryotes with cell walls made of chitin
  3. 10. Disease caused by viruses
  4. 11. Prokaryotes reproduce by __
  5. 12. Long, cells usually only have one or two
  6. 13. Type of bacteriophage infection
  7. 15. Unicellular organisms that lack a nucleus
  8. 18. Virus that infects bacteria
  9. 19. Protein coat surrounding a virus
  10. 20. Non living particle
Down
  1. 1. Eukaryotic organisms that are not animals plant or fungi.
  2. 2. Provides water, minerals, and shade
  3. 4. Exchange of genetic material
  4. 5. protest reproduce asexually by__
  5. 6. Microscopic fossils of eukaryotes date back ___
  6. 7. Lichens are __ to air pollution
  7. 8. Polymer of sugars and amino acids
  8. 14. Are protists prokaryotes or eukaryotes
  9. 16. Absorbs nutrients
  10. 17. Polymer made of modified sugars