Across
- 3. guess
- 5. makes an organism react
- 7. can change
- 10. fixed quantity broken into parts
- 11. balance for body to function
- 13. universe habitable by living organisms especially
Down
- 1. parts of Earth where life exists
- 2. cannot change
- 4. study of living organisms
- 5. example the black hole theory
- 6. comparing info by counting
- 8. how data changed overtime
- 9. example law of gravity
- 12. single celled life form