| A | B |
| many ecosystems combined in a particular area | biome |
| all of the communities in an area and the abiotic factors that contribute to their survival | ecosystem |
| more than one population that interacts together | community |
| more than one of the same species in the same area at the same time | population |
| single individual from a population | organism |
| part of Earth that supports life | biosphere |
| more complete model of feeding relationships | food web |
| eats consumers | carnivore |