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>
I am pretty sure its Detailed instructions correct me if I'm wrong hope this helps.
I think that this is what you're looking for but I'm not sure:
<span>Kingdom: Animalia<span>
</span>Phylum: Chordata<span>
</span>Subphylum: <span>Vertebrata</span><span>
</span>Class: <span>Mammalia</span><span>
</span>Subclass: Theria<span>
</span>Infraclass: <span>Eutheria</span><span>
</span>Order: <span>Primates</span><span>
</span>Suborder: <span>Anthropoidea</span><span>
</span>Superfamily: Hominoidea<span>
</span>Family: Hominidae<span>
</span>Genus: <span>Homo
</span>Species: <span>sapiens</span></span>
Explanation:
The chemicals are contaminant in the ground water system and they can inflict serious health hazards on humans when water is sourced from such polluted ground water system.
- Consuming contaminated water can lead to cholera and diarrhea.
- It makes ground water toxic and poisonous.
- Drinking contaminated ground water can lead to the introduction of heavy metals in the body.
- Chemical wastes containing radioactive materials can damage body tissues.
- They render ground water unsafe for drinking ans usage.
Learn more:
Air pollution brainly.com/question/10743354
#learnwithBrainly
Answer:
There are prion-like particles in the brain normally, and when these become abnormal they can cause disease. (Ans. A)
Explanation:
Prions are proteins which can trigger normal proteins to fold abnormally, and they are present in the brain. They are causing many types of neurodegenerative diseases in both humans and animals. Which are known as transmissible spongiform encephalopathies.
Prions can enter the brain with the help of infection, also can arise from the gene mutation that encodes the proteins, and sometimes this affects humans by infected meat.
If a person infected from prion disease, it affects central nervous system tissues like brain, eye tissues and spinal cord.
