Across
- 1. close relationship between two species that benefits at least one
- 7. organism living on or inside of another and harming it
- 8. organism that is killed for food
- 10. the role of an organism in its habitat or how it makes its living
- 11. organisms with characteristics best suited for their environment tend to survive and produce offspring
- 12. the struggle between organisms to survive as they attempt to use the same resources
Down
- 2. relationship in which both species benefit
- 3. behaviors and physical characteristics that allow organisms to live successfully in their habitat
- 4. relationship in which one species benefits and the other is not helped nor harmed
- 5. the organism that a parasite lives in/on
- 6. organism that does the killing
- 9. interaction in which one organism kills another for food