Biomes of the Earth

A Biome is all of the life zones, all plants, animals, and other organisms, as well as the physical environment in a particular area. A biome is characterized by its plant life, which is determined by its location. For example, northern coniferous forests exist in sub-arctic portions of North America and Asia, but further north, the conditions are simply too harsh and the season too brief for trees to grow. Instead of trees, the short vegetation of the tundra thrives in these areas. The same occurs with altitude, as trees give way to short alpine vegetation in high mountainous regions.…