Differences between Agnatha and Gnathostomata
S.N. Agnata Gnathostomata 1. The mouth is circular without jaws. The mouth is provided with jaws. 2. Paired appendages are missing. There are paired appendages, they can be fins or limbs. 3. The notochord is persistent. The notochord is usually replaced by a vertebral column. 4. The vertebral column is not developed or is represented…