Mussels have a sort of exo-skeleton. Their shell.
A hydrostatic skeleton
Disarticulated (without joints)
The phrase, "inside the skeleton" is a type of adverbial phrase. In other words, it is a type of prepositional phrase.
A mutant skeleton is a malformed skeleton.
The appendicular skeleton is attached to the axial skeleton.
A hydrostatic skeleton is a type of skeleton many animals in the animal kingdom have.
Your skeleton is attached to your body by your mussel.
A cheetah has an endoskeleton, which is an internal skeleton.
The boney kind.
internal
This is called an exoskeleton.
A bearded mussel is a mussel found off the coasts of Britain, Latin name Modiolus barbatus, also known as the horse mussel or the horse-bearded mussel.
a spine?
exoskeleton
Exoskeleton.
A papyrus
anthipod
It has an exoskeleton.