Describe three properties of mitochondria and chloroplasts that support the endosymbiotic theory. be sure to explain your answer.

Three properties that support the endosymbiotic theory are that chloroplasts and mitochondria contain a double membrane, each also contains genetic material that are duplicated with a separated cell cycle and both chloroplasts and mitochondria have their own ribosomes.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

the correct answer is b