A food chain is a sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

A producer is an organism that makes its own food, usually through photosynthesis, like plants.

A consumer is an organism that eats other organisms for energy.

A decomposer is an organism that breaks down dead plants and animals, returning nutrients to the soil.

An herbivore is an animal that only eats plants.

A carnivore is an animal that only eats meat.

An omnivore is an animal that eats both plants and meat.