A variation can mean something that is slightly different from similar items of its type (also a variant or variety). It can also apply to a difference itself (e.g. a variat â¦ ion in temperature). In mathematics, variation is the function that compares values among variables.
Cartilage is a type of elastic connective tissue which acts as rubber-like padding to cover and protect the ends of bones at joints. It is a dense matrix of elastic and collagen fibers which are embedded in rubber like ground substance.
Connective Tissue Proper: 1. Loose connective (areolar, adipose, reticular) 2. Dense connective tissue (regular, irregular, elastic). Bone Tissue: 1. Compact bone 2. Spongy bone. Cartilage: 1. Hyaline cartilage 2. Elastic cartilage 3. Fibrocartilage.