commensalism,parsism
From independent status to codependent status to a symbiotic/parasitic relationship wherein the smaller bacterium was engulfed in the larger, eventually becoming what we know today as a mitochondria, an organelle in the body of a larger cell. Mitochondria are present in almost all human cells and provide energy for the cell.
barbed wire
barbed wire
they changed from sad to happy
Fidel Castro came to power.
the egyptians developed nukes
the egyptians developed nukes
the egyptians developed nukes
the egyptians developed nukes
the egyptians developed nukes
the egyptians developed nukes
the egyptians developed nukes