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.
-cartilage not replaced by bones is found in regions where more resilient skeletal tissue is needed; skeletal cartilages can be hyaline, elastic and fibrocartilage. A. HYALINE CARTILAGE-provides support with flexibility and resilience. -it is the most abundant type of skeletal cartilage.