| A | B |
|---|
| biotic factors | living parts of an ecosystem |
| abiotic factors | non-living parts of an ecosystem |
| community | two or more organisms living and interacting in an area |
| population | all organisms of the same species in a certain place |
| niche | the role of an organism in its habitat |
| symbiosis | relationship between two organisms where at least one member benefits |
| commensalism | one organism benefits, the other is unaffected |
| mutalism | both organisms benefit |
| parasitism | one organism is harmed by the relationship |
| food chain | how energy is passed from one organism to another |
| decomposers | organisms decompose or break down foods |
| growth and development | the ability to get larger or become more comples |
| response | ability of an organism to respond to a stimulus |
| stimulus | a sudden change in environment that causes an organism to react |
| cells | the basic units of life in the body |
| energy | the ability to make things move or change |
| reproduction | the ability of one organism to give rise to another organism that is the same |
