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Sample Essay

Energy has been defined by Spellman (2010, p222) as that ability or capability to perform work. Ecosystems on the hand are all those organisms in the physical and biological environment and how they all interact with each other. For any ecosystem to exist there must be the existence of energy- where it is essential that this energy flows in order to revitalize organisms.

Natural ecosystems obtain their primary source of energy from an external source- the sun. In order to fully understand the concept behind the use and continuous energy flow of within ecosystems it is vital that this discussion takes into focus energy and matter transformation Spellman (2010, p222).

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