What did chloroplasts evolve from according to the endosymbiotic hypothesis?

Aribosomes
Bmitochondria
Caerobic bacteria
Dphotosynthetic

Verified Answer :

according to the endosymbiotic hypothesis, chloroplast evolved from : D. Photosynthetic bacteria

Endosymbiotic hypothesis is the hypothesis that explains the origin of mitochondria and chloroplast According to this hypothesis, these organelles were originated as separate prokaryotic organisms that were taken in primordial eukaryotic cell.

Yep! the answer ended up being D.