Which of the following is not evidence supporting the endosymbiotic theory?
a. mitochondria and chloroplasts are nearly identical to some free-living prokaryotes.
b. mitochondria and chloroplasts divide by splitting.
c. mitochondria and chloroplasts have their own dna.
d. the vacuoles can "come and go" across the plasma membrane.

The correct answer is D) the vacuoles can "come and go" across the plasma membrane.

Explanation:

The endosymbiotic theory exposes that mitochondria and chloroplasts were "swallowed" several years ago by a prokaryotic cell, that then became eukaryotic. These two organelles were originally two living and independent organisms, that's why the have their own DNA and also divide splitting. Anyway, the endosymbiotic theory does not explain anything about vacuoles and also, the sentence is not true. No organelle can come and go across the membrane, it's impossible for an organelle to break such barrier.