Evolutionists believe that all life came from prokaryotic cells because of the overwhelming evidence from genetics, biochemistry, and fossil records that suggest that all living organisms share a common ancestry. Prokaryotic cells are the simplest and oldest forms of life on Earth, and they have many characteristics that are shared by all living organisms, such as DNA replication and protein synthesis. Thus, scientists believe that the first living organisms were prokaryotic, and over time, they evolved into more complex organisms through a process of mutation, natural selection, and genetic drift.
