according to the theory of endosymbiosis, a mitochondria or chloroplast may have been a prey species and was…

according to the theory of endosymbiosis, a mitochondria or chloroplast may have been a prey species and was engulfed by a cell or it could have been a parasite that entered the cell. why do scientists think that the cell did not destroy or remove these structures? because the structures benefited the cell because they competed with the cell
Answer
Answer:
A. because the structures benefited the cell
Brief Explanations:
In endosymbiosis, mitochondria and chloroplasts provided energy - mitochondria through cellular respiration and chloroplasts through photosynthesis. This symbiotic relationship was advantageous to the host cell, so it did not destroy them. Competing with the cell would likely lead to the destruction or removal of the structures by the cell's defense mechanisms.