Show the reason why this difference in the complexion 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 lark dark people those with dark eyes and black hair have a great deal of this coloring material in their cells A great many people are neit neither her light nor very lark dark they have less than the dark complexioned people find and more than the light comple conid people when adlien the hair turns gray it Is because the pigment lias has disappeared As tills this is due to the loss a of tills this coloring material dark complex boned people turn gray sooner than light complexioned people the structure j of the skin showing how these cells tire arc made in layers can be seen by examining the skin with a micro scope |