Question

why is skin described as the jack of all trades

Answer 1

Skin is a complex organ that performs manyfunctions in the body and hence is sometimes aptly called “The Jack of all trades”, which means it carries out different functions but is "master of none

Answer 2

Because skin is the largest organ of our body .It accounts for 15 percent of an adult human's total body weight.Primarily the skin is an almost impermeable barrier. It also secretes sweat