Algae/reefs: regions of algal beds and reefs

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Continental Shelf: edges of the continents that extend 10-20 km out into the sea



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Cultivated Land: regions utilized by humans for food growing



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Desert: regions of little rainfall and warm air



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Estuaries: regions where fresh water of streams and rivers drains into the sea



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Extreme Conditions: extreme desert, rock, sand, and ice regions



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Forest: includes temperate evergreen and deciduous forest, as well as boreal forest



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Grassland/Savanna: the transitional areas between temperate forests and deserts, including shrubland and semidesert scrubland



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Lakes, Swamps, Rivers: water regions, also including marshes and streams



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Ocean: primary body of water covering 3/4 of the surface of the earth



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Rainforest: includes tropical and seasonal forest



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Tundra: Arctic region covered by a layer of permafrost



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Data Analysis: Bridget Smith
Web Design: Katie Strong