Here's a bit more about them:

* Structure: Cilia are hair-like projections that extend from the cell surface. They are much shorter than flagella (another type of hair-like structure) and are typically found in large numbers.

* Movement: Cilia beat in a coordinated, rhythmic motion, creating a wave-like movement that propels the cell or moves fluids past the cell.

* Function: Cilia play a crucial role in various cellular processes, including:

* Locomotion: In some single-celled organisms, cilia are used for movement.

* Fluid transport: Cilia can move fluids across cell surfaces, such as in the respiratory tract, where they help clear mucus and debris.

* Sensory reception: In some organisms, cilia are involved in sensory perception, such as detecting changes in fluid flow.

Let me know if you'd like to know more about cilia or flagella!