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The tundra biome is at the latitude of 65 degrees north, extending towards the North Pole and encircling the Arctic Ocean. It is the coldest biome and the simplest, at least in terms of flora and fauna diversity. More »

www.reference.com Geography Maps & Cartography

Terrestrial biomes are major regions in the Earth that share the same climate despite being in different geographical locations. The Earth has six major land biomes: rainforests, deserts, tundras, grasslands, taiga and t... More »

www.reference.com Science Environmental Science

The relationship between the arctic fox and polar bears and that between pitcher plant midges and mosquitoes are examples of commensalism in the tundra biome. Commensal interactions provide an advantage to an individual ... More »

www.reference.com Science Earth Science
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The seven important lines of latitude are the equator at 0 degrees, Tropic of Capricorn at 23.5 degrees south, Tropic of Cancer at 23.5 degrees north, Antarctic Circle at 66.5 degrees south, Arctic Circle at 66.5 degrees... More »

www.reference.com Geography Maps & Cartography

The North Pole's latitude is 90 degrees north, and the South Pole's latitude is 90 degrees south. The latitude indicates each geographic point's distance from the equator, which lies at zero degrees latitude. More »

www.reference.com Geography Maps & Cartography

The Arctic Circle is located 66.5 degrees north of the equator, which is at 0 degrees latitude. The area directly above the Arctic Circle pertains to the Arctic region, also known as the "Land of the Midnight Sun." More »

www.reference.com Geography Maps & Cartography

The tundra biome has the shortest growing season, ranging from 50 to 60 days in the Arctic tundra to up to 180 days in Alpine tundras. Tundra biomes are distinguished by low biodiversity and domination by mosses, lichens... More »

www.reference.com Science Earth Science