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What are your thoughts on cell theory? In biology, cell theory is the historical scientific theory that living organisms are made up of cells, and all cells occur...see morefrom pre-existing cells. Cells are the fundamental component of structure in all organisms, and they are the basic unit of reproduction. The action of an life form depends on the total activity in independent cells. This quiz will be helpful to you. Don’t forget to take your certificate upon completion of the quiz. see less
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