No they do not
No a lamprey does not have paired appendages.
Yes.
Yes, a kangaroo has paired appendages like legs and arms, and a vertebral column which provides support and protection to its spinal cord.
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The vertebral column is inferior to the skull.
the sternum is anterior to the vertebral column
the sternum is anterior to the vertebral column
the vertebral column is located below your skull on your back.
Some afflictions of the vertebral column are scoliosis, lordosis, and kyphosis. These all deal with a curvatures in different regions of the vertebral column.
yes, all vertebrates and chordates have a vertebral column
Lumbar vertebral column
The vertebral column is located posterior to the trachea, which means it is behind the trachea. Additionally, the vertebral column is superior to the trachea, indicating it is situated above the trachea in the body.