How Do We Fight Microorganisms? (pp. 206-215 in your textbook)

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Across
  1. 1. Single-celled pathogens that reproduce by splitting in half
  2. 3. Pathogens that absorb food from their surroundings
  3. 7. A pathogen that can cause diseases such as malaria and African sleeping sickness
  4. 8. An organism that is so small, it can only be seen with a microscope
  5. 10. Evidence that diseases are caused by microorganisms within the body
  6. 11. Multi-celled organisms that can be parasites inside of the human body
  7. 12. Activities that promote cleanliness and good health
Down
  1. 2. The body's natural defense against pathogens
  2. 4. Disease-causing viruses
  3. 5. A pathogen that is sub-microscopic; this means it can't even be seen with a light microscope
  4. 6. A chemical solution that contains a dead or weakened form of a pathogen
  5. 9. A chemical substance used to kill or slow the growth of baceria