Across
- 4. description of an object's qualities
- 7. makes their own history
- 8. non-living things in an environment
- 10. ability to maintain stable
- 11. when cells start to specialize
- 12. multi-celled organism
- 13. only one-celled organism
- 15. requires two organisms
Down
- 1. no nucleus
- 2. number of qualities
- 3. living things in an environment
- 5. requires only one organism
- 6. has a nucleus
- 9. how your body uses energy
- 14. you eat to get energy