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m_a_m_a [10]
3 years ago
5

Mitochondria and chloroplasts are thought to have been ______.

Biology
2 answers:
yawa3891 [41]3 years ago
6 0
Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms.
(At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion. Eukaryotic cells containing mitochondria then engulfed photosynthetic prokaryotes, which evolved to become specialized chloroplast organelles).
Snezhnost [94]3 years ago
3 0

Free living prokaryotes

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