Across
- 1. A life form that can only be seen with a microscope.
- 3. The ability of an organism to protect itself from a disease or the effects of a substance.
- 5. Of a disease, attacking many individuals over a vast area, as a country or the world.
- 6. The practice of keeping clean to stay healthy and prevent disease.
- 7. A disease that does not cause an infection.
- 12. A tiny reproductive body made up of one or more cells produced by certain animals and plants.
- 14. The science that uses very small living things to make things such as medicine.
Down
- 1. Mutated bacteria.
- 2. The science or activity of farming.
- 4. A disease that causes an infection.
- 8. The process through which members of a species that are best suited to their environment survive and reproduce at a higher rate than other members of the species.
- 9. The new organisms produced by one or two parent organisms.
- 10. An outbreak of disease that spreads rabidly to many people.
- 11. The branch of philosophy that deals with values pertaining to human conduct, such as good and bad or right and wrong actions and motives.
- 13. The total number of people living in a country, city, or other area.