Why are human beings, who look so different from each other in terms of size, color and looks said to be of the same species? [3 MARKS]
Each point: 1 Mark
1. A species is a group of organisms that are capable of inter breeding to produce a fertile offspring. Skin color, looks and size are all variety of features present in human beings.
2. These features are generally environmentally controlled. Various human races are formed based on these features.
3. However, there is no biological basis to this concept of races. Therefore, all human beings are a single species as humans of different color, size and looks are capable of reproduction and can produce a fertile offspring.