| A | B |
|---|
| Abiotic | Nonliving |
| Biotic | Living |
| Community | All the organisms living in a certain area |
| Population | All the members of one species that live in the same area. |
| Habitat | The place where an organism lives |
| Niche | An organism's job or role in its environment. |
| Biosphere | The thin zone or part of the earth that sustains (supports) life. |
| Ecology | The study of the environment - living and nonliving. |
| Consumers | Organisms that obtain food by eating plants and other animals. |
| Decomposers | Organisms that feed on dead organisms. |
| Food chain | model of the flow of energy through an ecosystem. |
| Food web | Combining & overlapping of many food chains. |
| Parasitism | The relationship where an organism lives on or in another living organism. |
| Commensalism | The relationship in which one organism benefits while another organism is unaffected. |
| Ecosystem | A geographical area where we look at both biotic and abiotic factors. |
