Producer
A living thing, such as a plant, that can make its own food.
Consumer
A living thing that cannot make its own food and must eat other living things.
Prey
Animals that are caught and eaten by predators.
Predator
An animal that hunts, catches and eats other animals.
Scavenger
An animal that feeds on dead plants and animals.
Decomposer
An organism that breaks down dead organism and animal wastes into simpler substances, which are then returned to the environment.
Food chain
The transfer of food energy between organisms in am ecosystem.
Food web
A group of food chains that overlap.