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.
The five most common types are: 1  Type I: skin, tendon, vascular ligature, organs, bone (main component of the organic part of bone) 2  Type II: cartilage (main collagenous component of cartilage)  Type III: reticulate (main component of reticular fibers), commonly found alongside type I.