What are some questions scientists still have about endosymbiosis?

endosymbiosis describes the origin of mitochondria and chloroplasts, but could it further describe additional characteristics of the eukaryotic cell?

endosymbiosis clarifies the starting point of mitochondria and chloroplasts, however, would it be able to likewise clarify different highlights of the eukaryotic cell? possibly. endosymbiotic starting points have been proposed for some, structures, including flagella (structures like the tail of a sperm), cilia (hair-like structures that assistance in velocity), and even the core — the cell's war room! be that as it may, researchers are still effectively discussing regardless of whether these structures advanced through endosymbiosis. the jury is out while more proof is assembled.

gold i'm pretty sure i might be wrong