Across
- 2. Cleanliness
- 4. A disease that can be spread to a person from another person, an animal, or an object.
- 7. Germs that cause disease
- 9. One Celled organisms that are more complex than bacteria
- 10. An organism such as an insect that transmits pathogens
- 15. Organisms that are so small they can only be seen through a microscope
- 16. The body's response to injury or disease, resulting in a condition of swelling, pain, heat, and redness
- 18. Organisms that are more complex than bacteria but cannot make their own food
- 19. A combination of body defenses comprised of the cells, tissues, and organs that fight pathogens in the body.
- 20. Substances that send the immune system into action
Down
- 1. A highly communicable viral disease characterized by fever, chills, fatigue, headache, muscle aches, and respiratory symptoms
- 3. The result of pathogens or germs invading the body, multiplying and harming some of the body's cells
- 5. Simple one-celled organisms
- 6. Viral disease characterized by an inflammation of the liver and yellowing of the skin and the whites of the eyes.
- 8. Able to be spread to others by direct or indirect contact
- 11. The Smallest and simplest pathogens
- 12. Any condition that interferes with the proper functioning of the body and mind
- 13. The ability to resist the pathogens that cause a particular disease
- 14. A preparation of dead or weakened pathogens that is introduced into the body to cause an immune response
- 17. Specific proteins that attach to antigens, keeping them from harming the body