Across
- 3. when an organism lives in or on another organism
- 5. their role is to break down dead organisms
- 7. the interdependent populations that inhabit a common environment
- 8. the nonliving parts of the environment
- 9. a feeding step in a food web
- 11. the autotrophic organisms in an ecosystem
- 13. describes a limiting factor that affects populations that reach a certain size
- 15. symbiotic relationship, one organism harmed and the other benefits
- 16. the role that a species plays in its community
- 17. the heterotrophic organisms in an ecosystem
- 18. symbiotic relationship in which both organisms benefit
- 19. a group of one species of organisims living in the same place at the same time
Down
- 1. all the organisms and abiotic factors in an environment
- 2. the living parts the environment
- 4. the portion of the earth that supports life
- 6. describes a limiting factors that affects populations regardless of its size
- 10. any biotic or abiotic factor that restricts the existence of organisms in a specific environment
- 12. the place that an organism lives
- 14. scientific study of the interaction between organisms and their environments