NEET BIOLOGY

Detailed explanation-1: -An endoskeleton is a skeleton that is on the inside of a body, like humans, dogs, or some fish. The endoskeleton develops within the skin or in the deeper body tissues. The vertebrate endoskeleton is basically made up of two types of tissues (bone and cartilage).

Detailed explanation-2: -Endoskeleton is an internal skeleton present in the bony or cartilaginous fishes. The cartilaginous fish’s endoskeleton is composed of cartilage. The bony fish’s endoskeleton is mainly of bones. Cartilaginous fish come under the class Chondrichthyes and all bony fish under the class Osteichthyes.

Detailed explanation-3: -The hard part which is the internal support of the structure is called an endoskeleton. It is developed from endoderm and is called a living structure. Some examples of endoskeleton are cartilage, bone, etc. The hard part present outside the body which protects the soft tissues and muscles is called the exoskeleton.

Detailed explanation-4: -Some animals have an internal skeleton. called an endoskeleton. Other animals possess a skeleton on the outside of their body called an exoskeleton.

Detailed explanation-5: -A group of fishes called elasmobranchs-sharks, rays, skates, and chimeras-have endoskeletons made entirely of cartilage, a type of strong, flexible tissue. Because cartilage is tough but lighter than bone, it allows fish to swim quickly but save energy.