| A | B |
| ecosystem | all living and nonliving things in an environment and the many ways they interact |
| herbivore | cosumers that get energy from eating plants |
| omnivore | cosumers that eat both plants and animals |
| community | different populations that interact with each other in the same area |
| decomposers | digest the waste and remains of dead plants and animals |
| population | all the members of one species that live within an area of an ecosystem |
| niche | a specific role an organism has in its habitat |
| energy | something all living things depend on |
| sunlight | necessary for plants to make their own food; the main energy source on earth |
| producers | make their own food |
| system | parts that work together for a purpose |