The document summarizes key details about the Arctic tundra biome. It describes the extreme seasonal differences, with summer temperatures reaching 12°C but winter temperatures plunging to as low as -70°C. Approximately 1700 plant species have adapted to survive the harsh conditions of the tundra. Several animal species also live in the tundra, including Arctic foxes, caribou, lemmings, and polar bears. The document provides examples of plant and animal species found in the Arctic tundra biome.