What is the difference between Protozoa and ciliophora?

Protozoa is a broad category that includes a diverse group of single-celled eukaryotic organisms, while Ciliophora is a specific phylum within Protozoa. Ciliophora, commonly known as ciliates, are characterized by the presence of hair-like structures called cilia used for movement and feeding. In contrast, Protozoa encompasses various other groups, such as flagellates and amoeboids, which have different modes of locomotion and feeding mechanisms. Thus, all ciliates are protozoans, but not all protozoans are ciliates.