Across
- 2. Any relationship in which two species live closely and at least one species benefits.
- 4. The number of births per 1,000 individuals for a given time period.
- 9. A relationship in which both species benefit.
- 11. The organism that benefits from parasitism.
- 14. Parts of a habitat that are/were living or interact with an organism.
- 15. Moving into a population.
- 17. The organism being killed.
- 19. A living thing.
- 20. Individuals who are better at surviving will continue to survive, those who don't will die.
- 22. All members of one species in a particular area.
- 23. The number of deaths per 1,000 individuals for a given time period.
- 25. The struggle for organisms to survive while needing the same resources as each other.
- 26. A group of organisms that can reproduce whose offspring can also reproduce.
Down
- 1. An environment that provides everything a specific organism needs to live, grow, and reproduce.
- 3. The organism that does the killing.
- 5. The community of organisms that live in a particular area, along with the nonliving parts of the environment.
- 6. The number of individuals in an area of a specific size.
- 7. Behaviors and characteristics that allow organisms to live successfully in their environment.
- 8. An environmental factor that makes a population cease to grow or decrease.
- 10. A relationship that involves one organism living with, on, or inside another organism and harming it.
- 11. An interaction in which one organism kills another for food or nutrients.
- 12. Nonliving parts of a habitat.
- 13. The largest population that an area can support.
- 16. A relationship where one species benefits and the other is neither helped nor harmed.
- 18. Leaving a population.
- 21. The organism that is harmed from parasitism.
- 24. The study of how organisms interact with each other and their environment.