This is mainly made up of living organisms and non-living components like air, water as well as mineral soil. This subject may be studied either as contingent collections of various plants and animals. You can also define a structured system and communication that are directed by basic rules and regulations. We know that fact that the ecosystem is controlled by internal and external factors. You can simply define the external factor like water, soil minerals, energy, etc. The main energy source for the ecosystem is the sun. The main structure of the ecosystem delivers information about the range of the climate conditions that prevail in the area. It is simply a description of the various species of organisms that are present, containing information on their life histories, populations, and distribution in space.