NEET BIOLOGY

Detailed explanation-1: -The skeleton of the fish is made of either cartilage (cartilaginous fishes) or bone (bony fishes). The fins are made up of bony fin rays and, except for the caudal fin, have no direct connection with the spine. They are supported only by the muscles.

Detailed explanation-2: -The skeleton of bony fishes is made of bone and cartilage. The vertebral column, cranium, jaw, ribs, and intramuscular bones make up a bony fish’s skeleton.

Detailed explanation-3: -Sharks, rays, skates, and chimaeras (also know as rat fishes) all have cartilaginous skeletons. Cartilage is less dense than bone, allowing sharks to move quickly through the water without using too much energy.

Detailed explanation-4: -Bony fish: (also known as Ray-finned fish) are the largest of the three groups of fish with almost 27, 000 species such as salmon, trout, lanternfish, cavefish, cod, anglerfish, tarpon, herrings, electric eels and much more. Bony fish have a skeleton made of bone.

Detailed explanation-5: -There are two types of fish that can be quite difficult to tell apart. Firstly cartilaginous fish have skeletons composed of cartilage. Secondly, bony fish have, yes you guessed it, bone skeletons! Their biological classifications are Chondrichthyes and Osteichthyes respectively.