Elements common to all vertebrates.. Back bone. Internal skeleton. Symmetry on both sides. the parties. Blood system. Tail

Here are some common signs of all vertebrates:
- Spine: All have a spine in the center of the body. It is composed of a series of short bones called vertebrates (hence the name of the group).
- Internal skeleton: all have an internal skeleton inside the body. It is composed of bone and cartilage. The skeleton grows with the years.
- Parity in the sides: the right side of the body looks like the left side of it.
- Parties: Most vertebrates have a pair of limbs. Certain vertebrates have hemorrhages (snakes).
Blood system: All vertebrates have blood in a closed blood system.
- Tail (tail): Most vertebrates have a sin. And the sinus of the other (human, bear, rotor).