Why does the skin colour vary among people?

Answer 1

It all depends on the amount of melanin in the skin. Generally, those with darker complexions had ancestors who needed greater sun protection, for example those living in very sunny environments. The more melanin the less likely your skin is to burn. Whereas those living further north, where the sun's rays are not as strong tended to be paler and had less melanin in their skin.

Answer 2

It has to do with our ansestors from long ago when no one moved from continent to continent. The africans became dark because of the scorching son and no winters, The Europeans are up north with winters and it is colder up there, The native Americans, latinos, and Indians became tan or light brown because of their position on earth.

Answer 3

Human skin has different color for two reasons: vitamin D and skin cancer. Sunlight on human skin produces vitamin D. Sunlight burns human skin producing skin cancer. Black skin protects against sunburn. Near the equator there is a lot of sunlight. Black skin is good. White skin burns and can get cancer quite easily. Far to the north, Black skin does not produce much vitamin D. White skin can produce adequate vitamin D. Today we know how to protect white people near the equator and we know what foods provide Vitamin D.

Answer 4

A human's skin cells develop and change over time.

While a person with black-skinned parents and ancestors are usually also dark-skinned, there also is a possibility of that person having lighter skin

It all depends on how the skin cells develop

Answer 5

The trait for skin color is a multiple allele trait, and since there are so many alleles, there are many, many combinations possible for skin color..

Answer 6

It depends on the amount of melanin (or color pigment) in a person's skin.

Answer 7

Due to oxygen content.