explain why some people are lighter skinned and why others are dark skinned
Light-skinned European women. Light skin is a naturally occurring human skin color, which has little eumelanin pigmentation and which has been adapted to environments of low UV radiation.Light skin is most commonly found amongst the native populations of Europe as measured through skin reflectance.ight-skinned European women. Light skin is a naturally occurring human skin color, which has little eumelanin pigmentation and which has been adapted to environments of low UV radiation.
Humans with dark skin pigmentation have skin naturally rich in melanin (especially eumelanin), and have more melanosomes which provide a superior protection against the deleterious effects of ultraviolet radiation.This helps the body to retain its folate reserves and protects against damage to the DNA.eople with relatively dark skin are referred to as brown, and those with very dark skin are often referred to as black, although this usage can be ambiguous in some countries where it is also used to specifically refer to different ethnic groups or populations.