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.
Most commonly, these are like tendons, but used to hold bones together. They are seen around joints. Cartilage is a type of tissue which is tough almost like bone, but not hard like bone. However, it is tougher than tendon or ligament. Unlike tendon and ligament, cartilage can withstand a great degree of compression.