| A | B |
|---|
| ecosystem | all living and non-living things in an area |
| population | group of organisms of one species in an area |
| community | group of all populations in an area |
| niche | job or role of an organism |
| habitat | place in which an organism lives |
| tropical rainforest | home to more species than any other biome |
| deciduous forest | has trees that lose their leaves in winter |
| desert | an area that receives less than 25 cm of rain per year |
| limiting factors | factors that impact what organisms can survive in an area |
| coral reef | warm shallow waters with many organisms |
| deep sea | cold, dark and very high water pressure |
| wetland | covered with water part or all of the year |
| river | fresh water that might be fast or slow flowing |
| parasite | an organisms that feeds off another oranism |
| host | an organism that may be harmed in the relationship |
| symbiosis | a long-term relationship between organisms |
| producers | organisms that make their own food |
| consumers | organisms that must eat other organisms for energy |
| decomposers | organisms that eat dead matter or waste |
| plankton | the source of most of the oxygen in our atmosphere |
