What is the difference between a human skeleton and a starfish skeleton?
A human has an endoskeleton which means that the human’s skeleton is on the inside of his body. A starfish has an exoskeleton, which means that it’s bony structure is on the outside of its body. In addition, it is an invertebrate which means that it’s “skeleton” is the shell that grows on it’s outside. The starfish is flexible, but it does not have a bony structure inside.