A type of cartilage that forms a model for developing bones provides a supportive framework, and protects underlying tissues is cartilage.

The type of cartilage you are referring to is hyaline cartilage. Hyaline cartilage is a glossy, bluish-white tissue that provides support and flexibility while serving as a precursor for the development of long bones in the body. It is found in various locations, including the ribcage, nose, larynx, and trachea. Hyaline cartilage plays a critical role in the growth of bones during development by serving as a model for ossification, where bone tissue replaces cartilage, allowing for bone growth and repair. It is also advantageous due to its smooth surface, which facilitates the movement of joints and reduces friction between adjacent bones.