Which of the following statements best supports the idea of endosymbiosis, which claims that certain organelles found within eukaryotic cells evolved from smaller free-living prokaryotic cells? a: Eukaryotic and prokaryotic cells both have a cell membrane, cytoplasm, and ribosomes.
b: Some eukaryotic organelles, such as the mitochondria and chloroplasts, have their own separate DNA, which is similar to the DNA found in bacterial cells.
c: Eukaryotic cells can be either autotrophic or heterotrophic, while prokaryotic cells can only be heterotrophic.
d: Prokaryotic cells lack a nucleus, but do have a circular chromosome consisting of DNA.