Question

the outer layer of skin consists of
a epithelial cells, blood vessels, and nerve endings.
b epithelial cells, blood vessels, nerve endings, and sweat glands.
c epithelial cells and blood vessels.
d epithelial cells and little else.

Explanation:

The outer layer of skin, the epidermis, is mainly composed of epithelial cells. It has no blood vessels, nerve - endings, or sweat glands. Blood vessels, nerve endings, and sweat glands are located in the deeper layers like the dermis.

Answer:

d. epithelial cells and little else.