Answer: 5. Tundra
Step-by-step explanation:
Tundra is a biome that is located in the coldest regions of the world. This is characterized by short growing seasons and low temperatures. The plants growing in these regions are short perennials. The soil in these regions is frozen and nutrition poor. Therefore, plants growing here are simple like lichens, mosses, sedges, grasses and dwarf woody plants as the soil and weather conditions cannot support the growth of deep rooted plants and trees.