An ecosystem is defined as a community of living things, composed of non-living components that interact with each other. An ecosystem is a structural and functional unit of ecology in which living organisms interact with each other and with the environment. In other words, an ecosystem is a chain of interactions between an organism and its environment. All plants and animals in certain areas are interrelated and also interdependent on each other and their dependence on the environment is ... The ecosystem is the basic unit of our environment and comprises living organisms and non-living and how they interact with each other. An ecosystem is a community of lifeforms and non-living components interacting with each other and the environment. Learn about the structure, components, types, functions and important ecological concepts of ecosystems with examples and diagrams. An ecosystem is a community of living organisms interacting with each other and their physical environment within a defined area. Learn more and take the quiz!