Question 9: Give two examples of artificial or man made ecosystems. List the salient features by which they differ from natural ecosystems.
Answer:
An ecosystem is a functional unit consists of all the organisms in the particular place that interacts with one another or with their physical environment that are interconnected by the flow of energy and a cycling of materials. It consists of various biotic and abiotic components. There are two different types of ecosystem: Natural ecosystem and Artificial or domesticated ecosystem.
Artificial or domesticated ecosystem is maintained artificially by the man by the addition of energy. For example: crop lands or crop fields like maize, wheat, rice field etc. where the man tries to control the biotic community as well as the physio- chemical environment.
Difference between natural and man- made or artificial ecosystem are as follows:
Natural ecosystem occurs naturally and includes two types of ecosystem: Terrestrial and Aquatic ecosystem whereas artificial or domesticated ecosystem is maintained artificially by the man by the addition of energy. In the Natural ecosystem, biotic and abiotic components are self- sustained; on the other hand, in artificial ecosystem the components are sustained artificially by regular feeding and cleaning of aquarium etc.
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