The document discusses four biomes: desert, savanna, tundra, and tropical rainforest. For each biome it lists important animal and plant species and describes the climate. The desert biome is hot and dry. The savanna biome has a wet/dry climate with temperatures from 68-86 degrees F. The tundra biome has short, cool summers and long, cold winters below freezing. The tropical rainforest biome has very high humidity with 250 cm of rainfall per year.