| A | B |
| ecosystem | An area in which living (biotic) and non-living (abiotic) things interact with each other and their environment. |
| biotic factors | The living parts of an ecosystem |
| abiotic factors | The non-living parts of an ecosystem |
| community | Two or more different groups that live and interact in the same area/ecosystem |
| population | : A group of organisms of the same species that live in a specific area |
| niche | The specific role or “job” an organism has in its habitat |
| food chain | simple, path of energy in an ecosystem |
| food web | An ecosystem’s interconnection or overlapping of many food chains |
| producers | organism that makes its own food through the process of photosynthesis |
| consumers | An organism that feeds on another organism |
| energy pyramid | The diagram that shows the flow of energy through a food chain |
| scavenger | An organism that feeds on dead or decaying organisms |
| decomposers | An organism that breaks down dead organisms and waste and returns the broken down nutrients to the environment. |