question_answer 28)

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

Answer:

All human beings, even though they have different size, colour and looks, belong to the same species because they have similar DNA sequences and have descended from same ancestors. Also, they are capable of reproducing among themselves. These variations may have arisen due to environmental factors, mutation and mixing of characters during reproduction.