Across
- 1. cell contents in thick fluid
- 3. found on sperm cells
- 7. pairs of microtubular structures
- 10. separates nucleus from the rest of the cell
- 12. used to move substances
- 13. mostly cellulose
- 14. structures for cell functions
- 16. contains chitin
Down
- 2. contains cell contents
- 4. smallest living unit
- 5. surrounds linear genetic material
- 6. cells that are 3.6 billion years old
- 8. cells with a cilia and flagella
- 9. cells with cell walls that help to support the cells
- 11. cells that are 1 billion years old
- 15. controls the center of the cell