| A | B |
| producers | All green plants; use the sun to make food |
| consumers | all animals |
| carnivores | animals that eat other animals (meat) |
| herbivores | animals that eat only plants |
| omnivores | animals that eat both plants and other animals |
| decomposers | they break down dead organisms |
| food chain | series of organisms that depend on one another for energy |
| food web | food chains connected together |