Across
- 3. one- or many-celled organism that lives in moist or wet surroundings
- 6. disease carrying organisms
- 7. a type of protein that speeds up chemical reactions in the body
- 9. the process of giving a vaccine by injection or by mouth
- 10. the process of heating liquid to a specific temperature that kills most bacteria
- 12. a complaex group of defenses
- 13. molecules that are foreign to your body
- 14. a set of DNA on a chromosome that carries instructions
Down
- 1. the use of chemicals to destroy cancer cells
- 2. a disease that is caused by a virus, bacterium, protist, or fungus and is spread from an infected organism or the environment to another organism
- 4. a protein made in response to an antigen
- 5. a minute piece of genetic material surrounded by a protein coating that infects the multiple in host cells
- 8. sexually transmitted diseases
- 11. substances that cause an allergic response
- 13. an overly stron reaction of the immune system to a foreign substance