A model that shows how energy flows through a food chain.

An organism that breaks down the remains of dead organisms into simpler substances.

A living thing that hunts and kills other living things for food.

A model of the path that the energy in the food takes as it moves through an ecosystem

An animal that feeds on the remains of dead animals that it did not hunt or kill.

An organism that uses the Sun's energy to make its own food through photosynthesis.

A model that shows how food chains overlap in an ecosystem.