In Ecology, the levels of organization are generally considered to refer to the following:1. Biosphere - This is where all living things on Earth live. Humans live in a biosphere
2. Biomes - A large naturally occurring community of flora and fauna occupying a major habitat.
3. Ecosystem - A biological community of interacting organisms and their physical environment.
4. Community - All the organisms living in a particular area or place: "local communities".
5. Populations- A particular section, group, or type of people or animals living in an area or country.
6. Organism - by itself.