Answer:
Homeostasis
Explanation:
It is a process that living things use to actively maintain fairly stable conditions necessary for survival.
Listed under are the 5 different type of cells found in the epidermis and their description:
1. Stem cells
These are what you call undifferentiated cells. These are cells found in the stratum basale, which is the deapest layer of the epidermis. These cells divide to create keratinocytes.
2. Keratinocytes
The make up the majority of the cells in the epidermis. They synthesize keratin which are proteins that make up your hair, skin, and nails. They can also be found in other organs inside your body.
3. Melanocytes
These cells can only be found in the stratum basale. They synthesize melanin with a brown to black pigment. These dark pigments serves as protection for the skin from harmful UV rays.
4.Merkel cells
Merkel cells are also known as <em>tactile cells</em>. They are the sensory receptor for touch. Merkel cells and the nerve fiber together are called the Merkel disc.
5. Dentritic cells
They are also known as <em>Langerhans cells</em>. They can be found in two layers of the epidermis: the stratum spinosm; and stratum granulosm. They are what you call macrophages that come from the bone marrow. They serve as immune cells that provide protection against toxins, microbes and other pathogens that try to penetrate the skin.
Hope you find some information above that will help you.
<h3><u>Answer</u>;</h3>
Photoreception
<h3><u>Explanation</u>;</h3>
- <em><u>Photoreception is a type of reception of light detection that lead to vision and depends on specialized light-sensitive cells called photoreceptors, which are located in the eye.</u></em>
- Photoreceptors are the cells in the retina that respond to light. There are 2 types of photoreceptors in the retina namely; rods and cones. The rods photoreceptors detect light and are located in the retina. Cone are photoreceptors that are located in the retina and detect color.
