| Term | Definition |
| Omnivore | an animal that eats both plants and animals |
| Nutrients | Organism need to survive off of Nutrients |
| Producer | an organism that makes its own food |
| Ecosystem | a system formed by the interaction of a community of organisms with their physical environment |
| Detrivore | organism that obtains its energy by feeding on dead organisms or wastes |
| Herbivore | any animal that feeds chiefly on grass and other plants |
| Prey | animal hunted or caught for food |
| Diet | the usual food and drink consumed by an organism (person or animal) |
| Decomposer | organism that breaks down and obtains energy from dead organic matter |
| Organism | Any living thing |
| Carnivore | any animal that feeds on flesh |
| Consumer | an organism that obtains energy by feeding on other organisms |