Final answer:
Muqarnas is a decorative system found in Islamic architecture and is primarily ornamental rather than load-bearing.
Step-by-step explanation:
Muqarnas is a decorative system often found in Islamic architecture that breaks the surface of a vault into small squinches, resembling a honeycomb. It is generally ornamental rather than structural. Therefore, the statement that Muqarnas can serve as a load-bearing structure is FALSE. It is primarily used as an architectural embellishment to create intricate and visually stunning designs.