Across
- 6. the most common chemical in cells
- 7. a change in the environment that causes a reaction
- 9. the ability of a living thing to maintain a stable internal environment despite changes in its external environment
- 11. made of multiple cells
- 12. chemical that helps provide cells with energy
- 13. a trait or quality that helps identify a living thing
- 14. scientist who showed that flies do not come from meat
- 15. production of offspring
Down
- 1. any living thing
- 2. mistaken belief that living things can come from non-living sources
- 3. made of a single cell
- 4. a reaction to a change in the environment
- 5. a living thing that eats other living things for food
- 8. chemical instructions in cells
- 10. a living thing that uses the sun's energy to make its food
- 13. the basic unit of life
