What is a function of the backbone in animals? it protects against predators. it regulates blood glucose. it surrounds the spinal cord. it limits movement.

It surrounds the spinal cord.

The backbone or vertebral column is the part of skeleton system of the animal which provides the protection to the spinal cord. The spinal cord along with the brain forms the central nervous system. It is delicate in all organism hence requires a bony and hard protection. It keeps the body of the animal stiff and allows the attachment of the pectoral and pelvic muscles.