Here's a breakdown:

* Prokaryotes: These are single-celled organisms that lack a membrane-bound nucleus and other membrane-bound organelles. Their DNA is located in a region called the nucleoid, which is not enclosed by a membrane. Examples of prokaryotes include bacteria and archaea.

* Eukaryotes: In contrast, eukaryotic cells have a true nucleus that contains their DNA, as well as other membrane-bound organelles. Examples of eukaryotes include plants, animals, fungi, and protists.

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