Across
- 3. living things react to this
- 5. provides structure for a cell
- 6. storage area for water, food, and wastes
- 8. food is burned here to make energy
- 12. to make more of one's own kind
Down
- 1. gel-like substance that fills the cell
- 2. thin covering around a cell
- 4. the control center of a cell
- 7. food factory that contains chlorophyll
- 9. the young of living things
- 10. living things use this for energy
- 11. the smallest unit of living matter