In which biome would thick,spongy mats of low-growing plants be a typical characteristic?

Name: In which biome would thick,spongy mats of low-growing plants be a typical characteristic?
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Thick, spongy mats of low-growing plants are a typical characteristic of the arctic tundra biome. This is because the tundra has a short growing season and limited nutrients, so the plants that grow there are adapted to grow low to the ground and create insulating mats to protect themselves from the cold and wind.

In Which Biome Would Thick,spongy Mats of Low-Growing Plants Be