A type of ecosystemAll the living organisms (including people) in an area as well as its physical environment, functioning together as a unit. An ecosystem is made up of plants, animals, microorganisms, soil,... More in which tree growth is limited by low temperatures. The origin of the word is from from the Kildin Sami word tūndâr, meaning “uplands” or “treeless mountain tract”. In the northern hemisphere, tundraA type of ecosystem in which tree growth is limited by low temperatures. The origin of the word is from from the Kildin Sami word tūndâr, meaning "uplands" or "treeless mountain tract". In the northern... More is found north of the taiga belt. Usually the ground in the tundra region is permanently frozen (permafrostPermafrost is frozen ground that remains at or below zero degrees Celsius (32 degrees Fahrenheit) for two or more years. It forms in regions where the mean annual temperature is... More).

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