Which biome is characterized by very low temperatures and brief growing seasons?

The correct answer, tundra, is characterized by extremely low temperatures and a short growing season. This biome generally occurs in high latitudes, near the Arctic and Antarctic regions, where the climate is harsh and cold for most of the year. The growing season typically lasts only a few months, during which time the temperatures can rise just enough to allow some plant life, mainly mosses, lichens, and low shrubs, to thrive. The soil in tundra regions is often frozen, known as permafrost, which further limits the types of vegetation that can grow.

In contrast, the desert biome experiences very little precipitation, resulting in arid conditions but can have varying temperatures, including warm or hot climates. The savanna biome is characterized by grasslands with scattered trees, typically found in regions with a distinct wet and dry season, and has a much longer growing season. The rain forest biome is known for its high biodiversity, warm temperatures, and significant rainfall year-round, providing an ideal environment for a wide variety of plant and animal life. Hence, the unique environmental conditions of the tundra are what make it distinctly different from the other biomes.