 | Term | Definition |
| | mutation | a change caused by genes in an organism |
| | offspring | a parent's child |
| | adaptations | changes organisms make to survive |
| | natural selection | a process of many changes over time that help an organism or species to survive |
| | community | the group of populations in an area |
| | ecosystem | all living things and nonliving things in an area |
| | energy pyramid | a diagram showing the flow of energy through a food chain |
| | habitat | the place in an ecosystem where an organism lives |
| | niche | the job an organism has in an ecosystem |
| | decomposer | an organism that breaks down other organisms |
| | photosynthesis | process a plant uses to change sunlight into energy |
| | ecosystem | the interaction of a community of organisms with their physical environment |
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