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The tundra biome is extremely cold. There are lots of rocks but there's not much vegetation. There are almost no trees found in this particular biome due to the area being very cold and normally dry. The temperatures in the biome don't warm up enough for the snow in place to completely melt.

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The average rainfall in the Tundra is a recorded 6-10 inches annually. This is a reason why the Tundra is able to survive.

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The Tundra is located near the North Pole and covers a fifth of the entire earth's surface. The countries that make up the tundra biome are: Canada, Greenland, Iceland, Norway, Russia, and certain parts of the United States. The continent that the tundra biome is located in is Antartica.

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Most animals in the tundra can't live in the tundra year round because of the harsh conditions and temperatures, but those that do were forced to develop adaptations that would help them survive. For example, brown bears eat as much as they can during the summer, and then they hibernate in the winter. This is a behavioral adaptation. Along with this, they allow the food eaten during the summer to be stored as a layer of fat underneath their skin, which insulates bear from the cold. While in hibernation the fat is slowly converted into energy that maintains life. This is a physical adaptation. Additionally, the Muk Ox has a physical adaptation to help it keep warm, which it achieves by growing two layers of fur. These, among many others, are some tundra animal adaptations.

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Plants that exists in the Tundra biome are mosses and lichen. Lichen adapt by soaking up moisture when available; that moisture is then soaked up by fungi that helps lichen obtain light and provides it with food and new tissues. Moss adapt by having special storage areas for water and nutrients, allowing it to thrive in abundance. Plants found in the Tundra biome are usually small in size because there's not sufficient nutritional value in the environment to support larger plants.

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Mutualism between Alga and Fungus - the fungus is 'fed' sugars by the photosynthetic alga, which receives protection from the fungus in return.
Parasitism - Liver Tapeworm infects moose, caribou, and wolves. It makes animals very ill.
Commensalism - Arctic Foxes follow Polar Bears and eat the scraps they leave behind.

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The soil in the Tundra is very low in nutrients and minerals; the only nutrients it gets is from animal droppings. The soil also becomes frozen below the ground because of the extremely low temperatures of the Tundra. This is also called permafrost. Since the soil is frozen, plants aren't able to grow their roots deep into the ground, which is why there aren't many tall trees.

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Make sure to bring a coat ((or 2)! The Tundra is the coldest biome that exists and has very low temperatures throughout the year. The average annual winter temperature is -30ºF, and the average summer temperature is 37-54ºF.

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https://ucmp.berkeley.edu/exhibits/biomes/tundra.php
https://www.bioexpedition.com/tundra-biome/
http://science.time.com
http://www.cotf.edu/ete/modules/msese/earthsysflr/tundraA.html
http://tundralpine.weebly.com/soil.html