The type of connective tissue that provides support and frameworks for the body, and forms structural models for many developing bones is .

The type of connective tissue that provides support and frameworks for the body, and forms structural models for many developing bones is Cartilage.

Here are the steps to answer this question:

1. Understand the question: The question is asking about a specific type of connective tissue that has certain functions such as providing support and frameworks for the body and forming structural models for developing bones.

2. Recall knowledge about connective tissues: Connective tissues are a group of tissues in the body that maintains the form of the body and its organs and provides cohesion and internal support. They include several types such as bone, cartilage, adipose (fat) tissue, and blood vessels.

3. Identify the correct type: From the description given in the question, we can identify that the correct type of connective tissue is Cartilage.

4. Cartilage is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, the rib cage, the ear, the nose, the bronchial tubes, the intervertebral discs, and many other parts of the body. Its main function is to provide a smooth, lubricated surface for articulation and to facilitate the growth and development of bones.