| A | B |
|---|
| ecosystem | groups of living things and the environment they live in |
| salinity | the amount of salt in water |
| climate | the average temperature and rainfall of an area over many years |
| producer | living things such as plants that produce their own food |
| consumer | a living thing that eats other living things for energy |
| diversity | variety |
| stability | the condition that exists when the changes in a system over time cancel each other out |
| decomposer | a living thing that feeds on the wastes of plants & animals or on their remains after they die |
| system | a group of parts that work together as a unit |
| habitat | an environment that meets the needs of an organism |
| population | a group of the same species living in the same place at the same time |
| niche | the role or part played by an organism in its habitat |
| community | all the populations that live in the same area |
