Mitosis is the process by which cells divide to create new cells. When Raul scraped his knee, the body sent signals to nearby skin cells, prompting them to divide through mitosis and produce new cells to replace the damaged ones. This process helps the skin heal while maintaining the same structure and color as the uninjured skin, as the new cells are identical to the original ones. Additionally, the skin cells also produce proteins that keep the texture and appearance consistent, ensuring the repaired area looks just like the surrounding skin.
Raul has scraped his knee and noticed that after a week it had almost completely healed. Raul wondered how the skin was able to repair itself while looking exactly the same as his non-injured skin. In 3-4 sentences explain how mitosis plays a role in healing skin after injury and is able to maintain the look of the existing, non-injured skin. Please make your answer simple, yet coherent, and intended for 9th grade.
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