Eventually , obcells evolved to fuse into proto - organisms for added protection of their internal components and the decreased probability of the loss of oligosaccharides during division .
Over several millions of years , obcells managed to survive off division only .
Obcells evolved to fuse into proto - organisms for added protection of their internal components and the decreased probability of the loss of oligosaccharides during division .
Over several millions of years , obcells managed to survive off division only .