1. Levels of Organization
All organisms depend on others sources for food, shelter, reproduction, or protection

2. Species Group of organisms that can interbreed successfully
Identify this as 1 organism

3. Population A group of organisms of ONE species
May compete with each other for food, water, or other resources (EX: Humans)

4. Communities Interacting populations
A change in 1 population in a community will cause changes in other populations (Ex. Hawks / Mice)

5. Ecosystems
All of the Biotic AND ABIOTIC FACTORS…

7. Biome
Areas of land around the world with similar plants, animals & climate.

8. Biosphere
Part of the earth that supports life