The hair follicles are present in the dermal papillae of the dermis layer. The dermal papillae are a series of triangular-shaped cells. The hair follicles are extending from the skin surface to the dermis layer of the skin. The hairs are the extension of the epidermis layer into the dermis layer of the muscle. The hair follicle has 2 parts, such as - the part which extends outside of the epidermis known as the shaft. The base of the follicle known as root. The hair follicle itself has different parts - outer root sheath, inner root sheath, and a centrally placed hair shaft. The erector muscles help in goosebumps of hair during cold.
<u>Dermis is the layer of the skin that is composed of thick, irregular connecting tissues</u>. It gives the hardness and flexibility to the skin. This is the layer that is present between the epidermis and the subcutaneous layer. The tissues here are combined with the nerves and blood vessels. This contains the hair follicles that provide essential conditions for the better growth of hairs.
This dermis layer is divided into two layers, namely the papillary layer which presents the upper layer and the reticular layer that represents the lower layer.
I think the correct answer among the choices listed above is option B. The process that creates specialized cells like blood cells, nerve cells, or bone cells, is called differentiation. It is a process where generic embryonic cells become specialized cells.
Buildup of organisms means that the species number is pretty high. Gradual change means that it was a slow, calm time to make the change. I hope this helps!!
