Final answer:Natural, vegetable, and metallic hair colors are also known as permanent colors, as they are designed to cause a long-lasting change in the color of the hair. This change is made possible by interacting with the hair's natural pigment, melanin.Explanation:Natural, vegetable, andmetallic hair colorsare also known asc) Permanent colors. This is because these types of hair dyes are designed to cause a long-lasting change in the color of the hair. They can accomplish this by using certain chemicals that interact with the natural pigment of the hair, calledmelanin, which is produced by cells known as melanocytes. Different hair colors result from differences in the type of melanin, which is determined by our genes.Learn more about Permanent Hair Colors...

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