Question

All human races like Africans, Asians, Europeans, Americans and others look so different from each other still they belong to the same species. Give three points to justify the statement

Answer 1

in the earth all living people will be having melanin pigment in their bodies when we go out on a sunny day melanin pigment comes up and protects us from sun rays in Africa there will be hot and Asians some times hot and cool and in America the temperature will be less so they look white

Answer 2

all these races living in different parts of earth with different environment conditions such as American live in cold place so their body in response to low temperature undergoes some variations like large size of lungs, white skin color to make the environment favorable for it and due longer persistence of these temporary variations the variations became permanent while African live in environment just opposite to that of American so they have different skin color from American yet all these races belong to same species sapiens because the genetic no of all those race is same that is 26 for humans which don't change by some environment factors easily.