Across
- 1. different populations that live together
- 2. consume other organisms to survive
- 5. process organisms use to make food by using chemical sources
- 6. eat animals and meat
- 10. is the study of interactions of organisms with other organisms
- 13. where organisms are grouped based on feeding relationships
- 15. eat dead matter
- 16. a collection of animals living in similar places
- 17. highest level of organization
- 18. make their food
- 19. eat both plants and animals
- 20. plants, algae, cyanobacteria, etc.
- 21. renewable organic matter
Down
- 1. can't make their food
- 3. plants and bacteria use this process
- 4. breaks down organic matter
- 7. individuals that belong to the same species and live in the same area
- 8. eat only plants
- 9. a model that shows energy and nutrients move through ecosystem
- 11. groups of similar organisms that can breed and produce fertile offspring
- 12. all food chains in the ecosystem
- 14. a group of ecosystems
- 16. diagram that shows the distribution of organisms and energy at trophic level