6th period: Drake and Lennox

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Across
  1. 5. An organism such as an insect, that transmits a pathogen
  2. 10. Organisms that are more complex than bacteria, but cannot make their own food
  3. 12. The smallest and the simplest pathogens
  4. 13. A preparation of dead or weakened pathogens that is introduced into the body to cause an immune response.
  5. 15. A highly communicable viral disease characterized by fever, chills, fatigue, headache, muscle aches, and respiratory symptoms
  6. 16. One-celled organisms that are more complex than bacteria
  7. 18. Cleanliness
  8. 19. Substances that send the immune system into action
  9. 20. Germs that cause diseases
Down
  1. 1. The body's response to injuries or disease, resulting in a condition of swelling pain heat, and redness
  2. 2. Single one-celled organisms
  3. 3. Any condition that interferes with the proper functioning of the body of mind.
  4. 4. A viral disease characterized by an inflammation of the liver and yellowing of the skin and the white of the eyes
  5. 6. A bacterial disease that usually affects the lungs
  6. 7. Proteins that attach to antigens, keeping them from harming the body
  7. 8. The ability to resist the pathogens that cause a particular disease
  8. 9. A serious inflammation of the lungs
  9. 11. A condition that happens when pathogens enter the body, multiply and cause harm.
  10. 14. Able to spread to others by direct or indirect contact
  11. 17. Organisms that are so small they can only be seen through a microscope