Write down the common features of connective tissue based on structure and function. Differentiate between bones and cartilages.

(N/A) $ \Rightarrow $ General characteristics of connective tissue:
$(i)$ Connective tissues are the most abundant and widely distributed in the body of complex animals.
$(ii)$ They link and support other tissues or organs of the body.
$(iii)$ Connective tissue arises from the mesoderm.
$(iv)$ Mainly three components are present: matrix, cells, and fibres.
$(v)$ The matrix is an extracellular material composed of glycoproteins and polysaccharides, which can be fluid, gel-like, or solid.
$(vi)$ These tissues have a good capacity for regeneration.
$(vii)$ Functions include structural support, protection of organs, and maintenance of body integrity.
$ \Rightarrow $ Difference between Bone and Cartilage:

Bone	Cartilage
Type: Dense or spongy. Can be long, short, flat, or irregular.	Type: Hyaline, fibrous, and elastic cartilage.
Function: Provides structural framework, locomotion, protection, and mineral storage; site of blood cell formation.	Function: Prevents wear and tear in joints, supports trachea, absorbs shocks, and provides flexibility.
Structure: Contains osteocytes in a hard, calcified matrix. Highly vascularized.	Structure: Contains chondrocytes in a semi-solid, flexible matrix. Generally avascular.
Location: Forms the main axial and appendicular skeleton.	Location: Found in joints, tip of the nose, outer ear, and trachea.
Fibrous coating: Surrounded by periosteum, which is rich in sensory nerve fibers.	Fibrous coating: Surrounded by a fibrous membrane known as perichondrium.