| Term | Definition |
| food chain | A hierarchical series of organisms each dependent on the next as a source of food. |
| producers | These are the much less dominant species in the food chain, These organisms create food for consumers. |
| comsumers | Those who feed on others within the food chain. |
| interdependent | (of two or more people or things) dependent on each other. |
| primary consumers | Ingest producers directly. |
| secondary consumers | Gets eaten by top predators, and eats primary consumers. |
| top predators | These animals reside at the top of the food chain. They are consumers without any predators. |
| bioaccumulation | When chemicals are passed from animal to animal through consuming |
| DDT | It is a very harmful pesticide that farmers use to kill insects. |
| photosynthesis | A process that some living things use to get energy from the sun. |
| decomposers | An living thing that helps other things break down. |