Here's why:

* Eukaryotes: Organisms made up of cells that have a true nucleus (containing DNA) and other membrane-bound organelles.

* Prokaryotes: Organisms made up of cells that lack a nucleus and other membrane-bound organelles. Their DNA is located in a region called the nucleoid, but it's not enclosed by a membrane.

Examples of eukaryotic cells:

* Animal cells

* Plant cells

* Fungi cells

* Protist cells

Let me know if you have any other questions!