Which of the following is an example of a prokaryotic cell?

E. coli is an example of a prokaryotic cell because it is a type of bacterium. Prokaryotic cells are characterized by their lack of a membrane-bound nucleus and organelles. Instead, the genetic material in prokaryotic cells is found in a nucleoid region, and they typically have a simpler cellular structure compared to eukaryotic cells, which include all plant, animal, and fungal cells. Prokaryotes also reproduce through binary fission and are often smaller in size than their eukaryotic counterparts. This classification highlights the fundamental differences in cellular organization and complexity between prokaryotic and eukaryotic organisms.