An Ecosystem can simply be defined as a system, comprising of all living organisms existing with one another in a unit of space interacting with abiotic components. There are quite a few forest ecosystem pdfs, available for those inclined to research into this further. Ecosystems form the foundation of Biospheres and determine the life of organisms, everywhere on planet earth. In an ecosystem, each and every single organism plays its part in the cyclic interaction, of living things with their surrounding environments.
Living organisms depend on other non-living factors for their survival and the absence of one can affect all the organisms in an ecosystem. Human beings are also very much dependent on an ecosystem for their survival. The benefits ecosystems provide us with are countless which include food, water, soil formation, pollination and air purification.