Across
- 2. the first thing observed under a microscope
- 4. said all plants were made of cells
- 6. theory the foundation of biology
- 8. said cells come from existing cells
- 10. said all animals were made of cells
- 11. a basic unit of life
- 12. the study of cells
- 13. wall what Robert Hooke saw when he was looking at cork
Down
- 1. named cells when he looked at cork under the microscope
- 3. organisms made of many cells
- 5. the tool used to look at cells
- 7. organisms made of one cell
- 9. little animals or what Leeuwenhoek saw under the microscope when he was looking at pond water