Nail matrix
nail body
free edge nail
nail root
<span>Nails are hard plates of tightly packed keratinized cells. They are clear and cover the dorsal surface of the last phalanges of fingers and toes. Nails protect the the ends of the fingers, allow us to scratch various parts of our body and help us grasping and manipulating small objects.
</span>The site of nail growth is the nail matrix<span> that is found beneath the nail root. The nail matrix is thick and is only composed of the deeper layer of the epidermis: the stratum basale (or germinativum). The keratinization of the cells of the nail matrix proceeds in the absence of a stratum granulosum and lucidum and this results into formation of a of a rigid and durable plate. As the nail matrix thus proliferates and differentiates, this hard plate is pushed forward onto the nail bed and the nail grows.</span>
Answer:
the upper layer of the Earth's mantle
Explanation:
Not the ocean, impossible to be in top of the core, not in the air
Autobiographical memory refers to memory of specific events that had occurred during the course of one' lifetime. Autobiographical memory is divided into two major groups which are episodic and semantic memories. Episodic memory recollects time, location and people while semantic memory recollect general facts. An example of autobiographical memory is the memory of college graduation event.
Nucleus
Nucleic acids, plasmids, and, rarely, thylakoids can be found in prokaryotic cells.
<span>amylase is an example of an enzyme</span>
In biochemical reactions, it is mostly triggered by enzymes. Enzymes are important components in the process that involves metabolism and digestive functions, further, most of these enzymes are proteins.Proteins are biological macromolecule and mostly composed of enzymes. Proteins play a role in the physical make-up of a cell or acts as a cytoskeleton –maintains cell shape and figure. These proteins plays different roles and works with nucleic acids and other macromolecules in the cells including cell cycle, cell adhesion, immune response and cell indicators.
