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The color of your hair depends an how much of each type of melanin, or pigment, it contains. All hair colors, from black to blond and everything in between, result from the blending of just two types of melanin: eumelanin (dark) and phaeomelanin (light). Each hair grows out of an individual follicle, or tiny tube beneath the skin's surface. Pigment cells in the follicle inject melanin into the hair shaft as the hair develops and grows longer. In later years, the follicle slows its production of melanin. Hairs with less melanin appear gray in color. If melanin production shuts down altogether, then the new hairs, lacking any melanin, will be white.Read the text.
The color of your hair depends on how much of each type of melanin, or pigment, it contains. All hair colors, from black to blond and everything in between, result from the blending of just two types of melanin: eumelanin (dark) and phaeomelanin (light). Each hair grows out of an individual follicle, or tiny tube beneath the skin's surface. Pigment cells in the follicle inject melanin into the hair shaft as the hair develops and grows longer. In later years, the follicle slows its production of melanin. Hairs with less melanin appear gray in color. If melanin production shuts down altogether, then the new hairs, lacking any melanin, will be white.
Which organizational structure does this text primarily use?-

This text primarily uses a cause and effect organizational structure.

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Apologies, the text primarily uses a chronological organizational structure. It presents information in the order of events and describes the process of hair color development from the follicle injecting melanin into the hair shaft to the slowing of melanin production in later years.