The dermis is the inner layer of the skin that contains within its structure (Select all that apply)
melanocytes
keratin
Chair follicles
Carrector pill muscles

The dermis is the layer of skin, which is present beneath the epidermis and above the subcutaneous layer. It is the thickest layer of the skin, primarily composed of elastic and fibrous tissue.

The correct answer is:

Option C. hair follicles

Option D. Arrector pili muscles

The dermis consists of:

1. The hair follicles are found in the epidermis and the dermis. Hair follicles nourish the hair and are the tube-shaped structure that surrounds the part of the hair.

2. Arrector pili muscles are the tiny muscles, which attach hair follicles at one end and dermal tissue at the other end. The arrector pili muscles contract to generate heat, giving the feeling of goosebumps.

Thus, the hair follicles and arrector pili muscles are found in the dermis.

To know more about dermis, refer to the following link:

link

Carrector pill muscles hair follicles

Explanation:

melanocytes and keratin are present in the epidermis

the answer will be a) proteins i believe