| Term | Definition |
| Food Chains | Shows the order that organisms are consumed in |
| Ecosystem | Where plants and animals live and interact with the environment |
| Riparian | An ecosystem alongside water |
| Producer | A plant-like organism that creates food using photosynthesis |
| Consumer | Cannot produce its own food, so it eats producers and other consumers |
| Herbivore | An organism that eats only plants |
| Carnivore | An organism that eats only meat |
| Prey | Something that gets hunted then eaten |
| Predator | An organism that has to hunt to eat |
| Trophic level | Each level of the food chain |
| Omnivore | An organism that eats meat and plants |
| Food web | A more complicated food chain that shows many different ways that energy is transferred |
| Decomposers | Organisms that break down dead organisms |
| Biomass | The size and weight of every organism in a species |
| Biomagnification | When something bad enlarges while it goes up the food chain |