Which process is catalyzed by rubisco during the light-independent reactions of photosynthesis? glycolysis carbon fixation reduction regeneration

Which of the following is the best definition of a eukaryota? a. a one-celled organism that does not have a membrane-bound nucleus b. a one-celled organism that does not have a cell wall c. an organism whose cells each contain a membrane-bound nucleus d. an organism whose cells each have a cell wall