Chapter 5.7, Problem 33AYP

Summary Introduction

To write:

About the causes of appearing age spots and white hair.

Introduction:

The skin is made up of two major tissue layers, the epidermis, and the dermis. The epidermis protects against the potential damage from abrasion on the skin's surface and the dermis is responsible for the strength of the skin. Melanin is the group of pigments in hair, skin, and eye color that protects from the sun's ultraviolet light.