Cell Theory
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Example:
Imagine trying to build a house using only Lego bricks. Each Lego brick represents a cell, the basic building blocks that come together to form the structure of the entire house, much like how cells make up all organisms and are the basic units of life. Just as you can't create new Lego bricks out of thin air and must use existing ones to build your house, new cells arise from the division of pre-existing cells, maintaining the continuity and integrity of living organisms.
Practice Version
Cell Theory: Cells make up all organisms, are the basic units of life, and come from other cells. Cell theory. Cell theory states that all living things are made of cells, which are the fundamental units of life, and new cells are produced from existing cells.