Across
- 3. organisms that feed on both meat and autotrophs
- 4. autotrophs
- 9. a species' average population size in a particular habitat
- 10. relationship where both organism benefit
- 11. progressive changes in the composition of an ecological community over time
- 14. one path of energy flow in an environment
- 16. the position organisms appear on a food chain
- 17. regions on around the Earth with similar climates, plants, and animals
- 20. biotic and abiotic factors in an area
- 22. organisms that feed on dead organic material
- 23. organisms that eat other foods
- 25. include disease, competition, and predation
- 28. organisms that hunt their food
- 30. nonliving factors in an environment
Down
- 1. all possible feeding relationships in an ecosystem
- 2. includes, forest fires, unusual weather, flooding
- 5. the place in which organisms lives out its life
- 6. close interactions between species
- 7. biotic and abiotic factors that restrict the existence of organisms in a specific environment
- 8. organisms that only feed on meat
- 12. the study of interactions between organisms and their environment
- 13. species first to colonize an environment that has been disrupted
- 15. organisms that only feed on autotrophs
- 17. the variety of life in the world or in a particular habitat or ecosystem
- 18. biological material derived from living or nonliving organisms
- 19. different species that live together in a habitat
- 21. relationship where one organism benefits and the other is harmed
- 24. living factors in an environment
- 26. graphic model of energy flow in a community
- 27. relationship where one organism benefits and the other neither harmed or benefited
- 29. role an organisms play in an environment