| A | B |
|---|
| consumers | eat other organisms to get their energy. |
| decomposers | break down dead plants and animals into smaller pieces that can be used again. |
| producers | get their energy from the sun and use it to make their own food. |
| food web | a diagram of how energy flows through and ecosystem. |
| ecosystem | the relationship between al the living and nonliving things within a specific area. |
| photosynthesis | the process of using the energy in sunlight to make food an oxygen. |
| phytoplankton | plant plankton that use sunlight to produce their own food. |
| plankton | organisms that float at the surface of the water and move with the currents. |
| zooplankton | animal plankton-some eat plant plankton and other eat other zooplankton. |
| ocean living things are classified by | how they get their energy, where they live and how they move |
