| A | B |
|---|
| Organism | Any living thing |
| Individual | A single organism |
| Population | One or more organisms of the same species |
| Community | 2 or more interacting populations |
| Ecosystem | A community plus the abiotic factors. |
| Abiotic | Nonliving |
| Biotic | Living |
| Habitat | A place where an organism gets all its needs met |
| Qualitative Observations | Descriptions using your senses |
| Quantitative Observations | Measuring, counting or estimating |
| Ecology | The study of ecosystems |
| Aquatic | Having to do with water |
| Terrestrial | Having to do with land |
| Species | An organism type that's different from all other organism types |
