Endosymbiotic Theory Practice Problems

Which of the following is a genus of nitrogen-fixing bacteria that forms symbiotic associations with the roots of certain leguminous plants, such as peas, beans, and clover?

Anabaena azollae resides within the specialized cavities on the leaves of Azolla and carries out which of the following processes?

Which of the following analogies between mitochondria/chloroplasts and bacteria is not one of the evidences supporting the endosymbiotic theory?

Which organelles are thought to have been independent organisms according to the Endosymbiotic Theory, and what features support this idea?