We simply define adaptation as theprocessofadjustmentoforganismwiththeirenvironment.It increases the possibility of surviving of an organism for longer time as it helps to get food and protect from enemies. Organisms shows tge adaptation in the following ways:
By losing and gaining of organs.
By changing the colour of body according to the habitat.
Periosteum is an extremely thin region of non-calcified tissue on the exterior of bones. It covers the entire surface of every bone in the body, with the exception of the joint-forming ends of bones where cartilage forms the bone’s outer layer.
