What bony plates make up a starfishs skeleton?

Starfish don't have bones like humans do. Instead, their skeletons are made up of ossicles, which are tiny, interlocking plates of calcium carbonate.

These ossicles are arranged in a pattern that provides both flexibility and strength. They give the starfish its shape and allow it to move by pushing water through its tube feet.

While the ossicles are the main component of the starfish's skeleton, they are also embedded within a tough, leathery skin. This skin helps to protect the ossicles and provides an overall protective layer for the starfish.