| A | B |
|---|
| Ecosystem | the environment that has the habitats for the community |
| Habitat | an environment that meets your needs |
| Resource | needed materials |
| Biotic | living things in an ecosystem |
| Abiotic | non-living things in an ecosystem |
| Organism | any living thing |
| Population | group of the same organism |
| Community | all the biotic factors in an area |
| Biome | geographic area with a specific climate |
| Biosphere | all the ecosystems on Earth |
| Multicellular | many cells |
| Unicellular | single cells |
| Autotroph | makes their own food |
| Heterotroph | consumes other organisms |
| Prokaryote | no nucleus |
| Eukaryote | contains a nucleus |
| Niche | your place in the habitat |
| Population Density | number of organisms in an area |
