Ecology
Across
- 2. of all
- 4. area
- 6. that have
- 8. life
- 10. the combined
- 12. life
- 15. of the planet in which all of
- 17. populations
- 18. and live in
- 20. ecosystem
Down
- 1. study of interactions
- 3. organisms
- 5. that influence
- 7. and the environment.
- 9. live together
- 11. that live in
- 12. organisms and between
- 13. exist, including land, water and
- 14. a group of
- 16. same climate
- 19. non-living