CBSE Class 9 Answered

An ecosystem is a functional unit comprising all the organisms in a particular place interacting with one another and with their environment, and interconnected by an ongoing flow of energy and a cycling of materials. An ecosystem results from the interactions of abiotic (soil, water, light, inorganic nutrients and weather), biotic (plants, animals, and microorganisms usually categorized as either producers or consumers), and cultural (anthropogenic) components.