Across
- 4. A simple single-celled microbe without a nucleus
- 6. Microscopic hairs on cells that lines the airways
- 9. An organism with complex cells that feeds off a living cell
- 10. materials and proteins
- 12. A white blood cell that engulfs and destroys pathogens
- 13. A painful redness or swelling of part of the body
- 14. A treatment that helps build immunity to an infectious disease
Down
- 1. A microscopic organism or agent that causes disease
- 2. An increase in core body temperature over an extended period of time
- 3. An organism that is too small to be seen by the naked eye
- 5. A sticky liquid that lines the inside of the nose, throat, intestines and lungs
- 7. An invasion of the body by pathogens that then multiply
- 8. A microscopic infectious agent made of
- 11. The body's ability to protect itself from infection