State the three principles of cell theory.
Question
State the three principles of cell theory.
Solution
The three principles of cell theory are:
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All living organisms are composed of one or more cells. This means that cells are the basic building blocks of all organisms.
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The cell is the basic unit of structure and organization in organisms. This means that cells are both the smallest and most important units of life. All the functions necessary for life happen at the cellular level.
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Cells arise from pre-existing cells. This means that new cells are formed by the division of existing cells. This principle was added after the first two to refute the idea of spontaneous generation.
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