| Question | Answer |
|---|---|
| Producer | An organism that can make its own food. |
| Consumer | An organism that obtains energy by feeding on other organisms. |
| Decomposer | An organism that breaks down wastes and dead organisms. |
| Fossil Fuels | An energy-rich substance (such as coil, oil, or natural gas) formed from the remains of organisms. |
| Fossil | The remains or imprint of marine life embedded or preserved in rock layers deep in the earth. |
| Sediment | Particles of rock and sand. |
| Food Web | The pattern of overlapping food chains in an ecosystem. |
| Competition | The struggle between organisms for the limited resources in a habitat. |
| Predation | An interaction in which one organism kills and eats another. |
| Symbiosis | A close relationship between species that benefits at least one of the species. |
| Parasitism | A relationship in which one organism lives on or inside another and harms it. |
| Mutualism | A relationship between two species in which both species benefit. |
| Commensalism | A relationship between two species in which one species benefits and the other is neither helped nor harmed. |
