1. Ecology
Study of organisms and their interaction with each other and the environment

2. Levels

3. Biosphere
Everywhere on the planet that supports life

4. Biome Group of ecosystems with same climate and dominant communities

5. Ecosystem
Biotic and abiotic factors in a particular area

6. Community
All living things in an ecosystem

7. Population
One species in an ecosystem

8. Niche
Role or job of an organism

9. Habitat
Place where organism lives

10. Environment Affected By:
Abiotic Factors
Nonliving
Ex. Rocks, water, temp.
Biotic Factors
Living or once living
Ex. Deer, dead leaves

11. Symbiosis Relationship between two species living closely together
Three types

12. 1. Parasitism
One benefits, other is harmed

13. 2. Mutualism
Both benefit

14. Commensalism
One benefits, other not affected