Esthetician or dermatologist
i belive that would be the work of D.N.A
The skin is not any thicker.. A person who works out has bigger muscles verses a person who does not work out
Because people inherit genes from their parents and the skin color itself from a thing called Melanin i believe and the higher level's on Melanin the darker the skin
A scab is a person who goes to work when the Union have called a strike.
A person who works on clocks is called a horologist.
a zebra ur welcom
auditor
A person who agrees to work but does not earn any money is called a volunteer.
Such a person could be called: Work Shy. Or sluggard
That would be an albino. A person suffering from Albinism Please se the related link below
Oily
An assistant.