The upper layer of the skin is a. called the dermis b. fed by a good supply of blood vessels c. called the epidermis d. composed of dense connective tissue.

It is called the epidermis. So C would be the answer.

Ithink the answer is 1. warmth

Air goes past the epiglottis and into the trachea when you breathe in. from there, it goes to your vocal cords in the larynx until it reaches the bronchi. from the bronchi, air passes into each lung.