Why do duplicated cells need to be identical from the original cell? It is more difficult for the organism's body to create a new and different cell New cells need to look and work the same way as the original cell Organisms need extra cells just in case their cells are harmed. Organisms need the new cells for change and growth.

Cells will duplicate or copy their DNA right before they divide. The process of cell division is called mitosis. Since the cell is dividing it needs two copies of its DNA - one is kept by the parent cell and the other is passed to the daughter cell.

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if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.