Question

multiple choice question
the endosymbiotic hypothesis suggests an origin for ______.

○ mitochondria, chloroplasts, and hydrogenosomes
○ eukaryotic ribosomes
○ bacterial cell walls
○ plasma membranes

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Explanation:

The endosymbiotic hypothesis proposes that certain eukaryotic organelles originated from free-living prokaryotes that were engulfed by a host cell. Mitochondria (from aerobic bacteria), chloroplasts (from photosynthetic bacteria), and hydrogenosomes (from anaerobic bacteria) fit this origin model, while the other options do not align with the core claims of the hypothesis.

Answer:

mitochondria, chloroplasts, and hydrogenosomes