Energy Flow in Ecosystems

A predator at the top of a food chain with few or no natural predators.

An organism that produces its own food using sunlight or chemical energy.

The variety of living organisms within an ecosystem.

The process of producing food using energy from chemical reactions instead of sunlight.

An organism that obtains energy by eating other organisms.

An organism that breaks down dead organic matter and recycles nutrients.

An organism that feeds on dead organic matter by ingesting it.

The movement of energy through an ecosystem from one organism to another.

A diagram showing the amount of energy available at each trophic level.

The movement of energy from one trophic level to another.