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| a large area characterized by its climate and the plants and animals that live in the area |
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| a forest with trees that loose their leaves |
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| sometimes called a taiga, this forest has evergreen trees called conifers that produce seeds in cones |
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| this biome has more biological diversity than any other biome |
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| the tops of the tallest trees in the tropical rain forest |
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| sometimes called steppes, prairies, and pampas where the main producers are grasses |
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| grasslands found in Africa, India, and South America that have dry seasons when the grasses dry out and turn brown |
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| biomes that dry and often very hot |
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| a biome that is very cold and where trees do not grow |
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| a layer of frozen ground beneath the surface of the soil |
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| a biome found at the tops of very tall mountains where trees can not grow |
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| tiny producers that float near the surface of water; they form the base of the ocean's food chains |
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| where the ocean meets the land. |
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| ocean water begins to get deeper, receives lots of sunlight, many plants and animals live in this area |
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| deep ocean water, plankton lives at the surface and animals such as whales and sharks are found here |
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| the ocean floor; very cold and very little sunlight |
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| small animals that live in groups, their skeletons form reefs that provide homes for many animals and plants |
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| where fresh water from rivers spills into the ocean; plants and animals must be able to survive in salt water |
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| an ecosystem in the Atlantic Ocean that contains rafts of algae where many animals can hide from predators |
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| icy waters in the Arctic Ocean and around Antarctica that support plankton for animals to eat |
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| a stream of fresh water that joins a larger stream of water |
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| area of land that is sometimes underwater or whose soil contains a great deal of moisture |
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| treeless wetland ecosystem where plantd such as grasses can grow |
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