Cilia and Flagella

 Some cell surfaces have cilia and flagella, which are structures that aid in feeding. Cilia and flagella can be distinguished by their structure and by the nature of their action. Cilia are short, numerous, hair-like projections that move in a wave like motion. Flagella are long projections that move n a whip-like motion. Flagella and cilia are the major means of locomotion in unicellular organisms.

This is cilia.

And, this is flagella.