|Class 9 Biology Diversity In Living Organisms||Vertebrata|
The animals belonging to this group possesses a true vertebral column.
These organisms have internal skeleton which allows a completely different distribution of muscle attachment points required for movement.
Animals belonging to this group are bilaterally symmetrical.
They are triploblastic, coelomic and segmented.
They have a notochord, dorsal nerve cord and paired gill pouches.
They also have a complex differentiation of body tissues and organs.
This group of animals can be further divided into following categories: