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What are the three main reasons why cell division is important?

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The three main reasons why cell division is important in organisms are reproduction, repair and growth, according to "McDougal Littell Science Cells and Heredity." Cell division is necessary in order for life to continue.

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What are the three main reasons why cell division is important?
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Full Answer

Cell division serves as a means of reproduction in unicellular organisms through binary fission. In multicellular organisms, cell division aids in the formation of gametes, which are cells that combine with others to form sexually produced offspring. For growth to occur in living organisms, the number of cells have to increase through cell division until it reaches its maximum size.

The human body also repairs injuries by means of cell division. When skin is cut, the skin cells on either side of the cut divide to make new cells that heal the wound.

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