skeleton

Endoskeleton means the skeletoon is on the inside. Exoskeleton  means  the skeleton is on the outside .   Hydrostatic is another type of skeleton. Vertebrates have endoskeletons,

Endoskeleton means the skeleton is on the inside eg. humans.

Exoskeleton means the skeleton is  on the outside eg. lobsters.

Hydrostatic skeleton means the animal has no bones.

Endoskeleton means the skeleton is on the inside.

Exoskeleton means the skeleton is on the outside.

Hydrostatic skeleton means the skeleton has no bones.