What Is the Main Reason That the Tundra Does Not

Multiple Choice

What is the main reason that the tundra does not have large plants?

A) The seeds of large plants were never dispersed into these regions.
B) The amount of sunlight is not great enough for large plants to survive.
C) The amount of rainfall is not enough for large plants to survive.
D) The other species of plants have out competed them for resources.
E) The permafrost persists, even during the summer. Permafrost is a layer of permanently frozen ground found within the tundra. Even during the summer months and the short growing season this layer of ground will remain frozen. It is the frozen ground that is the greatest limiting factor for the growth of large plants. They cannot establish a root system deep enough into the ground to support them.