Question

what is the main difference between eukaryote and prokaryote cells?
eukaryote cells have a nucleus and prokaryote cells dont
eukaryote cells have an exterior wall and prokaryote cells dont
eukaryote cells have a cell membrane and prokaryote cells dont

Explanation:

Eukaryotic cells have a true nucleus enclosed by a membrane, while prokaryotic cells lack a membrane - bound nucleus. Prokaryotic cells may have cell walls (e.g., bacteria), and both eukaryotic and prokaryotic cells have cell membranes.

Answer:

Eukaryote cells have a nucleus and Prokaryote cells don't