Author Question: The cause of psoriasis is A) fungus. B) virus. C) unknown. D) ... (Read 23 times)

lidoalex · **on:** Jul 16, 2018

The cause of psoriasis is

A)

fungus.
B)

virus.
C)

unknown.
D)

bacteria.

Question 2

The primary function(s) of the skin is

A)

to provide a second line of defense against infection.
B)

to help regulate the oxygen level in the blood.
C)

to cover and protect the underlying body structures from injury and invasion by microorganisms.
D)

all of the above