In cyclostomata, cranium and vertebral column is

Human vertebral column has

Human vertebral column has

Human vertebral column has

True vertebral column is seen in

which of the following is the smallest taxonomic group of animals having a cranium , vertebral column , ventral heart , pulmonary respiration and two pairs of limbs

Largest vertebra in human vertebral column is

Curvature of vertebral column is helpful in

Curvature of vertebral column is helpful in

Curvature of vertebral column is helpful in