A cytoskeleton is a structure that helps cells maintain their shape and internal organization. They also provide mechanical support that enables cells to carry out essential functions like division and movement. It relates to the walls of a building because just like how buildings are used as a support cytoskeleton provides support for cells. The proteins that make up the cytoskeleton are joined together, similar to walls. The cytoskeleton provides a framework for the cell, just as walls provide a framework inside a building.
this would be b amino acid
explanation: