Read the text.

Question

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?

Compare and contrast

cause effect

Answer 1

The text primarily uses a cause and effect organizational structure. It explains how the amount and type of melanin in hair follicles lead to various hair colors, and it details the effects of reduced melanin production, resulting in gray or white hair. The relationships between melanin levels and hair color outcomes illustrate a clear cause (melanin production) and its effects (hair color changes).