https://youtu.be/RlWj__29Uew The term ‘ecosystem’ was proposed by a British ecologist A.G. Tansley (1953). It represents the basic fundamental, functional unit of ecology which comprises of the biotic community together with its abiotic (non-living) environment. Ecosystem is the functional unit of nature where living organisms interact with each other and with their environment. Ecosystems can be recognized as self-regulating and self-sustaining units of landscapes that may be terrestrial or aquatic. Forests, grasslands and deserts are examples of terrestrial ecosystems. The aquatic ecosystems can be either freshwater (ponds, lakes, streams) or saltwater (marine estuaries) type. Ecosystem may be natural (forest, sea) if developed under natural conditions or artificial (garden, aquarium, agriculture) if…