What type of skeleton do grasshoppers tapeworms and crocodiles have?

Grasshoppers have an exoskeleton, which is a hard outer structure made of chitin that provides support and protection. Tapeworms possess a soft, flexible body without any skeleton, as they are flatworms that rely on their body structure for support. Crocodiles have an endoskeleton made of bone, which provides internal support and protection for their bodies. Each of these organisms has evolved a skeleton type that suits its lifestyle and habitat.