The backbone is formed of many ring shaped pieces for two reasons: it has many pieces because this allows it to bend in many places, giving it great flexibility, and it is ring shaped so that it can contain and protect the spinal cord.
Gomphosis
They develope in the fetus from masses of hyline cartalige shaped like future bony structures.
Animals with backbones are called "vertebrates." Animals without backbones are called "invertebrates."
Procallus or (Fibrocartilaginous callus) is a bony structure formed in the second stage of Bone fracture healing by Chondroblasts.
internal skeleton is meaning that the organism have backbone. So that means that insect is not part of it. Also examples such as jellyfish, squid, octopus, etc. does not fall in internal skeleton group.
Gomphosis
Vertebrates are animals that have a backbone and an internal bony skeleton.
Yes they have a backbone
The backbone
Yes, it has a backbone and is in the family of bony fish.
Toads are vertebrates as they have an internal bony skeleton and a spine (backbone).
A bony line of articulating vertebrates - the same as in humans.
bony fish have backbones
A deer as a bony backbone called a spine or vertebrae, which classifies it as a vertebrate.
A manatee is a mammal. It is a vertebrate, as it has an internal bony skeleton and a spine (backbone).
The brown treecreeper (Climacteris picumnus), like all bird species worldwide, has a backbone as part of an internal bony skeleton.
is the auditory portion of the ear. It is a spiral-shaped cavity in the bony labyrinth.