4 What is a difference between prokaryotic and eukaryotic cells? A. Prokaryotic cells always have cell walls, but eukaryotic cells do not. B. Eukaryotic cells do not have membrane-bound organelles, but prokaryotic cells do. C. Prokaryotic cells do not have a nucleus, but eukaryotic cells do. D. Organisms with eukaryotic cells are always multicellular, but organisms with prokaryotic cells are not.