Across
- 2. – Network of feeding relationships.
- 5. – Individuals of the same species.
- 6. – Community of organisms and their environment.
- 8. – Eats other organisms.
- 9. – Harmful environmental substances.
- 10. – Nutrient circulation in nature.
- 12. – Large ecological region.
- 14. – Component of DNA and bones.
- 18. – Trait improving survival.
- 22. – Struggle for resources.
- 23. – Group capable of reproducing.
- 24. – Element in proteins and DNA.
- 25. – Breaks down dead matter.
- 26. – Role of a species.
Down
- 1. – Makes its own food.
- 3. – Interacting species in an area.
- 4. – Species disappears forever.
- 7. – Close species interaction.
- 9. – Eaten by predators.
- 11. – Protecting nature.
- 13. – Linear feeding relationship.
- 15. – Lives on or in a host.
- 16. – Variety of species.
- 17. – Flows through an ecosystem.
- 19. – Long-term weather pattern.
- 20. – Hunts other animals.
- 21. – Essential for life.
- 22. – Found in all life forms.
- 23. – Continuing life.
- 27. – Natural home of an organism.