Vocabulary

5. A principle or standard by which something may be judged or decided
10. A limitation on restriction
11. species Species that help maintain species diversity by keeping the best competitors at a low enough density to prevent competitive exclusion to occur
13. Relationship in which two species live closely together
14. The capacity of an ecosystem to respond to a disturbance by resisting damage and recovering quickly
15. A situation where to gain some advantage, you have to pay a price
17. This series or predictable changes that occurs in a community over time
18. One member of the association benefits and the other is neither helped nor harmed; i.e. barnacles and whales
19. When all members of a particular species die

1. Organism that does the killing and eating
2. factor Factors that causes population growth to decrease
3. One organism lives on or inside another organism it harms; i.e. fleas and mammals
4. A group of individuals of the same species inhabiting the same area
6. services Any positive benefit that wildlife or ecosystems provides to people
7. Both species benefit from the relationship; i.e. flowers and bees
8. Food organism
9. The variety of life in the world or in a particular habitat or ecosystem
10. When populations become crowded, organisms compete, or struggle, with other essentials of life such as food, water, territory, and mates
12. Living influences on an organism; i.e. birds, trees, mushrooms, bacteria, etc.
16. Physical, or nonliving, factors that shape an ecosystem; i.e. climate, wind, soil type, sunlight, and water
20. The full range of physical and biological conditions in which an organism lives and the way in which the organism lives and the way in which the organism uses those conditions; it's occupation