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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?

A: because they competed with the cell

B: because the structures benefited the cell​

User Truly
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Answer:

Because the structures benefited the cell​

Step-by-step explanation:

Scientists believe that host cells and bacteria formed a mutually beneficial endosymbiotic relationship when the host cells ingested aerobic bacteria and cyanobacteria but did not destroy them.

User Zoltan Kochan
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