The theory of endosymbiosis suggests that chloroplasts and mitochondria were once free-living prokaryotes, that were engulfed by
larger prokaryotic cells. Eventually, this relationship lead to the development of eukaryotic cells with cellular organelles. These organelles included mitochondria, and in some cases, chloroplasts. Which of these is not supported by the endosymbiosis theory concerning organelles? A) contain DNA. B) contain ribosomes. C) are capable of living independently. D) are surrounded by a double membrane.
I think it's C) because organalles are not capable of living independenly. They are in need of the help of other cell material which will help them survive.
internal-organ function, breathing, digestion, and heartbeat. This system consists of two complementary parts: the sympathetic and parasympathetic systems.