Levels of Ecological Organization

Front

What is the smallest level of ecological organization?

Back

Organism

Front

What is a group of organisms of the same species that live in the same area?

Back

Population

Front

What do we call a group of different populations living together in the same place at the same time?

Back

Community

Front

What is the term for all the living and non-living things in a particular area?

Back

Ecosystem

Front

What is a large area characterized by specific climate and plant/animal communities?

Back

Biome

Front

What is the highest level of ecological organization that includes all living things on Earth?

Back

Biosphere

Front

What is the term for the role an organism plays in its environment?

Back

Niche

Front

What is the relationship called when two different species live together and interact?

Back

Symbiosis

Front

What is the term for a species that has a large impact on its ecosystem?

Back

Keystone species

Front

What is the process by which organisms better adapted to their environment tend to survive and produce more offspring?

Back

Natural selection