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