how many biomes are in earth
Flexi Says: A biome is a group of similar ecosystems with the same general abiotic factors and primary producers. There are two major groups of biomes, and each of these has major sub-groups as listed below:
- Terrestrial biomes are land-based, and include deserts, grasslands, forests, and tundra.
- Aquatic biomes are water-based, and include freshwater and marine.
In addition, the major terrestrial and aquatic biomes listed above can be further subdivided into smaller, more precise biomes. For example, forests are typically divided into tropical rainforest, temperate deciduous forests, temperate coniferous forest, and boreal forest (taiga). Freshwater biomes include lakes, ponds, rivers, deltas, and mangroves. Finer divisions are sometimes made based on latitude, for example in some cases subtropical may be considered as separate from tropical. Therefore, the exact number of biomes is not set. It varies depending on the scale and specificity needed for given studies.