---

Terrestrial Ecosystem : Natural ecological groups of plants and animals extend over large areas. Each of major terrestrial ecosystem or terrestrial areas with their group of plants and associated animals, have different type of biomes including tropical rainforests, savanna, mediterranean, deciduous, grasslands, deserts, taiga and tundra.

Aquatic Ecosystem : There are many kinds of aquatic ecosystems that differ widely with regard to abiotic factors. The aquatic ecosystems range from open ocean to small temporary puddles, have conditions of salinity, depth and fluctuations of temperature.