Diseases Vocabulary

4. A form of asexual reproduction in which one cell divides to form two identical cells.
6. Organisms that cause disease.
9. Drugs that block the growth and reproduction of bacteria.
10. Magnitude and direction.
12. Mutually beneficial.
13. A sudden rise in the incidence of a disease.
14. An organism that feeds on a living host.
15. A large group of one-celled organisms that sometimes cause disease.
17. A chemical or physical agent that interacts with DNA and causes a mutation.

1. A tiny, nonliving particle that invades and then reproduces inside a living cell.
2. A dead or weakened pathogen introduced into the body to produce immunity.
3. A disease that spreads rapidly.
4. An organism that absorbs nutrients from the environment.
5. Living cell in which a virus replicates.
7. Disease that occurs over a wide geographic area and affects a very high proportion of the population.
8. The study of microorganisms.
11. Kingdom composed of eukaryotes that are not classified as plants, animals, or fungi.
16. A widespread outbreak of an infectious disease.