Mel’s Crossword Puzzle

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Across
  1. 2. grow in colonies or biofilms
  2. 4. yeast, mold, or mushrooms
  3. 7. caused by two airborne virus variants
  4. 8. external and internal parasites
  5. 9. live in extreme environments
  6. 11. one partner benefits, the other is neither benefited nor harmed
  7. 14. caused by bacteria yersenia pestis
  8. 15. needs a host to replicate
Down
  1. 1. tiny organisms invisible to the naked eye
  2. 3. best way to prevent spread of infections
  3. 5. spanish flu pandemic 1918
  4. 6. diverse shapes and functions
  5. 10. caused by HIV virus
  6. 12. benefits both bacteria and human
  7. 13. photosynthetic and found in water bodies