How would you define an ecosystem? This learning resource provides a plethora of information regarding the living and nonliving parts of various ecosystems. An ecosystem is considered to be a community of living and nonliving things that work together. They have no particular size and can be as large as a lake or as small as a puddle. Healthy ecosystems contain a great deal of species diversity, and the living organisms in an ecosystem can be divided into three categories: producers, consumers and decomposers. All ecosystems also include soil, atmosphere, heat and light from the sun, water and living organisms.
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