Question

Why is skin called 'the jack of all trades'?

Answer 1

Skin is called the jack of all trade because skin is our body's primary organ from which significant body functions such as sweating through sweat pores from our skin eliminate urea and excess salts such as Nacl from our body and many other functions. Skin is a complicated organ that performs many tasks in the body and is therefore sometimes properly called "The Jack of all trades," meaning it performs various tasks but is "master of none."