Question

features of gnathostomata

Answer 1

it inculdes advanced vertebrate
mouth has jaws
embryoic notochord is replaced in adult by vertebral column
paired fins or limbs present
paired nostril
both cold blooded and warm blooded
gnathostomata is divided into two super class pisces nd tetrapoda

Answer 2

Hey Mate..

Gnathostomes are characterized by:

• A vertically biting device called jaws, and which is primitively made up by two endoskeletal elements, the palatoquadrate and Meckelian cartilage, and a number of dermal elements called teeth, sometimes attached to large dermal bones.
• Resemble bony fish and terrestrial vertebrates in having jaws and paired appendages.
• An electroreceptive system is well developed.
• Endoskeleton entirely cartilaginous.
• No swim bladder or lung.

Thank You..