Unit 1 Review

1. The role and position a species has in its environment.
3. Independent Factors that limit population size regardless of population density (e.g., natural disasters).
4. A group of organisms that can interbreed and produce fertile offspring.
6. A close, long-term relationship between two different species.
8. Dependent Factors that limit population size more strongly as population density increases (e.g., competition, disease).
12. An interaction where one organism kills and eats another.
14. The study of interactions among organisms and their environment.
15. Population growth that slows as it reaches carrying capacity.
17. A group of individuals of the same species living in the same area.
19. A symbiotic relationship where both species benefit.

2. A community of organisms and their abiotic environment.
5. Non-living factors in an environment.
7. The organism that does the killing in predation.
9. Population growth under ideal conditions with unlimited resources.
10. Capacity The maximum population size an environment can support.
11. Living factors in an environment.
13. A symbiotic relationship where one species benefits and the other is unaffected.
16. A symbiotic relationship where one species benefits and the other is harmed.
18. The organism that is eaten in predation.