Unit #1 Review A

Front

What is a niche?

Back

The unique position that a species has in the physical use of its habitat and in its function (job) within an ecosystem.

Front

What is a trophic level?

Back

A step in the food chain, food web, or ecological pyramid.

Front

What are biotic factors?

Back

Living factors or organisms that affect an ecosystem.

Front

What is an ecosystem?

Back

All the organisms in a particular location, including their nonliving environment.

Front

What is a food web?

Back

Network of all food in an ecosystem.

Front

What are abiotic factors?

Back

Non-living chemical and physical parts of the environment that affect living organisms.

Front

What is a producer?

Back

An organism that produces its own food, typically through photosynthesis, and serves as a food source for other organisms.

Front

What is a consumer?

Back

An organism that consumes other organisms for energy.

Front

What is a decomposer?

Back

An organism that breaks down dead or decaying organisms, returning nutrients to the ecosystem.

Front

What is a population?

Back

A group of individuals of the same species living in a specific area.