1. Ecologists study environments at different levels of organization
Ecologists study environments at different levels of organization. - each level has unique properties resulting from interactions with its components

2. An organism is an individual living thing, such as an alligator.

3. A population is a group of the same species that lives in one area.
Organism

4. A community is a group of different species that live together in one area.
Population
Organism

5. An ecosystem includes all of the organisms as well as the climate, soil, water, rocks and other nonliving things in a given area.
Ecosystem
Community
Population
Organism

6. Biome
A biome is a major regional or global community of organisms characterized by the climate conditions and plant communities that thrive there.
Ecosystem
Community
Population
Organism

7. The Biosphere
The broadest, most inclusive level of organization is the biosphere, the volume of Earth and its atmosphere that supports life.

8. Biotic Factors
Living things in the environment

9. Non living things in an environment
Abiotic Factors
Non living things in an environment
Air
Soil
Light
Climate
Water