Across
- 2. an organisms ability to survive and reproduce in its environment
- 6. subdivisions on the geological scale
- 8. change in a kind of organism over time
- 10. process where chemical energy is used to make carbohydrates
- 11. organisms that get their energy from other organisms
- 13. the place where Darwin studied for evolution
- 15. collection of all organisms that live in a environment
Down
- 1. preserved remains of ancient organisms
- 3. chemical substance that an organism needs to live
- 4. scientist who studies fossil
- 5. organisms that get their energy from the sun
- 7. feeding relationships among organisms in an ecosystem
- 9. a group of heterotrophs that break down organic matter
- 12. scientific study of organisms interacting with other organisms and its environment
- 14. unit of time which are are subdivided