Whats the coldest biome (land-based ecosystem)?
Of all the kinds of ecosystems on land the coldest one is the tundra, found in the Arctic and at high elevations in the mountains. In these treeless regions, plants and animals are forced to survive on almost no available resources. Because the climate is so harsh there is little extra energy for plants to put into large size or fancy flowers. They are generally small and grow only during a short part of the year. They have shallow roots because the soil is very shallow, resting on a layer of always-frozen ground called the permafrost. Animals in the tundra are equally challenged. Many hibernate for almost the entire year, and some migrate when winter comes. Animal populations are subject to extreme population cycles, and the total mass of animal life is low compared to warmer biomes.
