The study of all the physical as well as biological processes including the distribution and abundance of living organisms and the interaction in between them with their surrounding environment is known as Ecosystem. In simpler words, if any environmental changes occur in the physical or abiotic factors, they in turn change the type and number of the organisms that is both the plants and the animals, present in that particular area.
The ecosystem is very complex in nature and human beings are a part of the ecosystems also.
The theme of the ecosystem is “energy flow”. Sustenance of ecosystem is possible due to the energy dependence as well as energy transfer between various components of an ecosystem may it be living or non-living.
Examples of Ecosystems: Terrestrial or land-based ecosystem, Aquatic or water-based ecosystems etc.