A protozoan has thousands of cilia and a gullet into which food-bearing water is directed. To which group does it belong
Ciliated protozoans possess numerous cilia whose coordinated movement directs water laden with food into a cavity called the gullet. Paramoecium is the example given for this group.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Euglenoids Slime Moulds Protozoans