Final answer:
The cytoskeleton is composed of microfilaments, intermediate filaments, and microtubules. Cilia and flagella are both made up of microtubules, but differ in size and function.
Step-by-step explanation:
The cytoskeleton is composed of three types of protein-based filaments: microfilaments, intermediate filaments, and microtubules. Microtubules are the thickest and are made up of tubulin proteins. They play a role in maintaining cell shape, positioning organelles, and are found in cilia and flagella. Cilia are shorter and more numerous than flagella, and they beat constantly to move materials along the cell surface. Flagella, on the other hand, are longer and less numerous, and are specialized for cell locomotion.