Q. 1. 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?
Human beings who look so different from each other in terms of size, color and looks said to belong to the same species because their genetic makeup is similar and have the same organization at the genetic level. We all have the same number of chromosome and we breed among ourselves to produce fertile offspring.
Human beings who looks so different from each other in terms of size, colour and looks are said to belong to the same species because: 1. They have similarities in the DNA sequences. 2. They have descended from the same ancestor. 3. They can reproduce among themselves.