Ecosystems

3. Organism that's killed.
4. Characteristic that makes an individual better suited to its environment may eventually become common in that species.
8. Close relationship between two species that benefits at least one of the species.
9. The community of organisms that live in a particular area,along with their nonliving surroundings.
10. Involves one organism living on or inside another organism and harming it.
12. Behaviors and physical characteristics that allow organisms to live successfully in their environment.
15. Organism that the parasite lives in or on.

1. Organism that does the killing.
2. Relationship in which both species benefit.
5. struggle between organisms to survive as they attempt to use the same limited resource.
6. One species benefits and the other in neither helped nor harmed.
7. Interaction in which one organism kills another for food.
11. Environment that provides the things the organism needs to live,grow,and reproduce.
13. Organism that benefits from parasitism.
14. Living Thing.