Melanin in the integumentary system .
a. is part of the hypodermis
b. is part of the dermis
c. synthesizes keratin, the waterproofing protein
d. accounts for the various amount of hair on humans
e. acts like a sunscreen that absorbs UV radiation

e. acts like a sunscreen that absorbs UV radiation

Explanation: Melanin are body pigment that protects the body again UV radiation it is produced by melanocytes cell. It gives the dark colour of the skin, hair, eye. An albino is side to lack melanin pigment that give the dark body coloration and they wear protection again the damage cause by direct contact of UV.

Melanin can be increase in the skin by the use of some anti oxidants and nutrients such as Vitamin A,E,C which can be gotten from food substances consumed and this helps protect the skin against cancer.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;