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| A large relatively distinct terrestrial region with similar climate, soil, plants, and animals regardless of where it occurs in the world. |
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| The treeless biome in the far north that consists of boggy plains covered by lichens and mosses; it has harsh ,cold winters and extremely short summers. |
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| A region of coniferous forest (such as pine, spruce, and fir) in the Northern Hemisphere; located just south of the tundra. Also called taiga. |
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| a coniferous biome with cool weather, dense fog, and high precipitation. |
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| Temperate Deciduous Forest |
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| A forest biome that occurs in temperate areas where annual precipitation ranges from about 30 to 50in. |
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| A lush, species-rich forest biome that occurs where the climate is warm and moist throughout the year. |
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| A biome with mild , moist winters and hot, dry summers; vegetation is typically small-leafed evergreen shrubs and small trees. |
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| A grassland with hot summers, cold winters, and less rainfall that is found in the temperate deciduous forest biome. |
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| A tropical grassland with widely scattered trees or clumps of trees. |
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| A biome in which the lack of precipitation limits plant growth; deserts are found in both temperate and tropical regions. |
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| A body of fresh water surrounded by land and whose water does not flow; a lake or pond. |
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| A freshwater ecosystem such as a river or stream in which water flows in a current. |
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| Lands that shallow fresh water covers for at least part of the year; wetlands have a characteristic soil and water-tolerant vegetation. |
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| Important environmental benefits, such as clean air to breath, clean water to drink, and fertile soil in which to grow crops, that the natural environment provides. |
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| A coastal body of water, partly surrounded by land, with access to the open ocean and large supply of fresh water from a river. |
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| The cumulative genetic changes in populations that occur during successive generations. |
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| The tendency of better-adapted individuals-those with combination of genetic traits best suited to environmental conditions-to survive and reproduce, increasing their proportion in the population. |
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| The process of community development over time, which involves species in one stage being replaced by different species. |
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