Description : Which one of the following pairs belongs to cartilaginous fish? (1) Shark and Tuna (2) Shark and Ray (3) Skates and Hilsa (4) RayandEel
Last Answer : (2) Shark and Ray Explanation: Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. ... by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.