Here's why:
* Prokaryotic cells are simple, single-celled organisms like bacteria and archaea. They lack a true nucleus and other membrane-bound organelles like mitochondria, Golgi apparatus, and endoplasmic reticulum.
* Eukaryotic cells, on the other hand, are more complex cells found in plants, animals, fungi, and protists. They have a well-defined nucleus and various membrane-bound organelles.
Let me know if you have any other questions!