| A | B |
|---|
| producer | An organism that makes its own food. |
| consumer | An organism that obtains the food by eating other organisms. |
| decomposer | An organism that gets its energy by breaking down the remains of dead organisms. |
| trophic level | A feeding level in an ecosystem. |
| food chain | Shows the flow of energy from one organism to the next in an ecosystem. |
| food web | A set of interconnected food chains showing the energy flows in an ecosystem. |
| herbivore | Primary consumer that feeds only or almost entirely on plants. |
| carnivore | Secondary consumer that feeds only or mainly on animals. |
| omnivore | A consumer that eats both plants and animals. |
| energy pyramid | Shows the energy loss between the trophic levels in an ecosystem. |
