| A | B |
| fresh water | water that has very little salt |
| desert | an ecosystem that gets very little rainfall |
| salt water | water that has lots of salt |
| forest | an area where the main plants are trees |
| environment | everything around a plant |
| habitat | provides a population with all its needs |
| deciduous forest | a forest where most of the trees drop their leaves each fall |
| tropical rain forest | grows in places taht are hot and wet ALL year |
| ecosystem | living and nonliving things interacting |
| population | a group of the same kind of living things that live in the same place at the same time |
| coastal forest | grows where it does not get too warm or too cold and there is lots of rain |
| community | all the populations that live in an ecosystem |
| coniferous | forest that contains mostyly evergreens |