Final answer:
The cytoskeleton is like muscles in the body as they both provide structural support and enable movement through the interaction of protein filaments.
Step-by-step explanation:
The cytoskeleton is a group of fibrous proteins that provide structural support for cells, much like the bony skeleton supports the human body. Similarly, muscles in our body contract and move due to the interactions between protein filaments. In the cytoskeleton, actin filaments and myosin proteins are responsible for cell movement and contraction, just like in our muscles. Actin fibers, similar to muscle fibers, can slide past each other with the help of myosin, resulting in cell contraction.