Across
- 4. an organism that is too small to be seen with the naked eye
- 7. All the microorganisms (bacteria, viruses, fungi, and protozoa) that live in and on a person
- 11. the powerhouse of the cell
- 14. medicines that kill microorganisms, especially bacteria
- 15. Teachers name
- 17. the relative size of things
- 19. the name of a multi-cellular cell
Down
- 1. waste matter excreted from the bowels
- 2. cell this type of cell comes out of your body if you get a paper cut
- 3. living things, such as plants, animals, and bacteria
- 5. the smallest non-living unit of life
- 6. the color to walk on in the hallway
- 8. showing adult qualities
- 9. the name of a single cell
- 10. the process by which plants make food
- 12. the smallest unit of life
- 13. to examine or study
- 16. the brain of the cell
- 18. the opposite of left