Every human being occupies some part of a complicated organization. A group of students, brought together in a particular place, make up a school. The students, in turn, are grouped into a variety of classes assigned to particular teachers, and the teachers themselves are responsible to a small number of local administrators. It is interesting to extend this idea to include the entire school system of which you are a part.
KeywordsYeast Cell Nitrogen Cycle Grape Juice Atmospheric Carbon Dioxide Living Thing
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