Organisms and Their Roles

An organism that makes its own food.

• decomposer

• consumer

• producer

• scavenger

An organism that eats other organisms.

• producer

• omnivore

• decomposer

• consumer

A consumer that eats only plants.

• carnivore

• omnivore

• decomposer

• herbivore

A consumer that eats only animals.

• herbivore

• omnivore

• carnivore

• decomposer

A consumer that eats plants and animals.

• omnivore

• herbivore

• producer

• carnivore

A carnivore that eats dead organisms.

• consumer

• scavenger

• carnivore

• decomposer

An organism that breaks down wastes and dead organisms.

• decomposer

• consumer

• herbivore

• producer

A series of steps in which organisms transfer energy

• food chain

• energy pyramid

• food web

• consumer

Many overlapping food chains

• food chain

• energy pyramid

• food web

• consumer

A diagram that shows the amount of energy that moves from one feeding level to another

• food pyramid

• food chain

• food web

• energy pyramid