Final answer:
The tundra biome is characterized by dwarf shrubs, grasses, and sedges, and is adapted to long dark winters. The boreal forest or taiga is incorrectly stated as being dominated by deciduous trees; it is, in fact, made up mainly of conifers.
Step-by-step explanation:
The biome dominated by dwarf shrubs, grasses, and sedges that can tolerate long dark winters is the tundra. This biome is the coldest of all and is characterized by its low temperatures, little precipitation, and short growing seasons. A key feature is that it supports only a limited range of life adapted to its challenging conditions.
The false statement about biomes from the given options is c. Boreal forests are dominated by deciduous trees. The boreal forest, also known as taiga, is primarily made up of coniferous trees, such as pines, spruces, and firs, rather than deciduous trees.