what is terrifying, is that sometimes one identity takes over control in such a huge level that the other member of endosymbiosis almost loses itself and it's independent identity  more like becoming a slave than mutually benefiting partner that is seen in a symbiosis  it is believed that mitochondria was an aerobic organism who became an organelle through a fateful endosymbiosis more than 1.45 billion years ago. we can still see that mitochondria has its independent dna (circular mtdna) and divides through fission (almost like its reproducing)  but all its productivity is consumed by a superior cell (that himself isn't independent belongs to a multicellular organism) it's more like,  you enslaved your cells your cells enslaved mitochondria  and sometimes the rebel causing cancer.
Jihadi