Show the reason why this difference in the complexion comp lerion of people is due to the varying amount of pigment or coloring material in the cells of which the skins of all animals are made very light people have very little pigment very dark people those thosa with dark eyes and black hair have a great deal of this coloring material in their cells A great many people are neither light nor very dark they have less than the lark dark complexioned people and more than the light complexioned people when the hair turns gray it Is because the pigment has disappeared As this is duo due to the loss of 0 this coloring material dark complex lolled people turn gray sooner than tight light complexioned people tho the structure of the skin showing how these cells are made in layers can be seen by examining tho the skin with a microscope |