Question

why are human beings who look so different from each other in
of size, colour and looks said to belong to the same species​

Answer 1

Answer:

This is because even though the outer appearance is different ,there molecular, bilogical similarities and all humans have 46 uncoiled chromosomes.

Answer 2

Answer:

because they are belonged to kingdom animalia, and they have same body language and function as similar to other one.they all are 46no.of,chromosomes.