| A | B |
|---|
| Producer | an organism that makes its own food |
| Consumer | obtains its food by eating other organisms |
| Decomposer | gets its energy by breaking down the remains of dead organisms |
| Trophic level | each feeding level in an ecosystem |
| food chain | flow of energy from one organism to the next in an ecosystem |
| food web | the interconnected network of food chains within an ecosystem |
| Herbivores | feed only or mainly on plants |
| Carnivores | feed only or mainly on animals |
| Omnivores | eats both plants and animals |
| Energy pyramid | shows the energy loss between the trophic levels in an ecosystem |
