Let’s take for example cars, motorbikes, airplanes, ships, construction vehicles and bicycles. They all are different in the way they function, but they all serve the same purpose; transportation. The basic idea comes from the same origin. They all need wheels and they all need gears to function.
Similarly, all life has evolved from a common ancestor or from a basic concept of a cell. Thus they all share some overlapping features and have some similarities in their DNA.
Latest Answers