Answer:
Mitochondria and chloroplasts likely evolved from engulfed bacteria that once lived as independent organisms. At some point, a eukaryotic cell engulfed an aerobic bacterium, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion. (nature.com)
Explanation:
Disesadessdew..............
Decomposers are bacteria that break down decomposing or rotting dead organisms, or something that was alive one (weather it be human or just nature) and slowly dies away with the help of decomposers. hope this helps.
I don’t know about alternative or chi square but a bull hypothesis from what I know is saying that your claim or thesis is wrong.
I hope that helped. :)