What evidence supports the theory of endosymbiosis?

The evidence suggests that these chloroplast organelles were also once free-living bacteria. The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them.

Information from:

evolution.berkeley.edu

for the people who need this for the USATestPrep...

Explanation:

c,d, and e

c) Mitochondrial DNA...typhus.

d) Both mitochondria and chloroplasts...nucleus.

e) Both mitochondria and chloroplasts...proteins.

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