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| | System - Wikipedia, the free encyclopedia |
 | | Human systems may be comprised of smaller groups or sub-systems that may strive to accomplish their own goals at the expense of other living systems or other human systems. |
 | | Again, an example will illustrate: There are systems of counting, as with Roman numerals, and various systems for filing papers, or catalogues, and various library systems, of which the Dewey Decimal System is an example. |
 | | In the human body, such systems are referred to as the nervous system, the circulatory system, the digestive system, the reproductive system, and the respiratory system. |
| en.wikipedia.org /wiki/System (1138 words) |
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