| A | B |
| coastal forest | A forest of tall trees growing where there is a lot of rain and the weather is not very cold or hot. |
| deciduous forest | A forest of trees that lose and regrow their leaves each year. |
| environment | Everything around a plant or an animal. |
| habitat | Provides a population with all of its needs. |
| tropical rain forest | A forest growing in a hot, rainy place. |
| community | All the populations in an ecosystem. |
| desert | An ecosystem found in areas that get very little rainfall. |
| forest | An area which the main plants are trees. |
| population | A group of the same kind of living things that live in the same place at the same time. |
| coniferous forest | a forest of trees that form seeds in cones. |
| ecosystem | Living and nonliving things interacting in an environment. |
| fresh water | Water that has very little salt in it. |
| salt water | Water that has a lot of salt in it. |