Biomes are large-scale ecosystems. The surface of the Earth can be divided according to biomes. Tundra Cold, dry climates found almost entirely in the far north of the planet. Permafrost prevents ...

The animals in a biome depend on plants ... At the other end of the Earth, the Antarctic Polar region has the same climate zone, but different animals live there. The Antarctic has no polar ...

The relative proportions of different life forms ... The tropical forest biome is estimated to contain over half of the terrestrial species on Earth. Approximately 170,000 of the 250,000 described ...