Answer:
1st factor is:Cornified layers:loss of water in the cell in the layer of dying cells
2nd factor is infusion of keratin its a dense protein that hardens the skin cell to aid in producing a barrier against the outside world
Answer:
Protein capsid are unique to viruses.
Explanation:
<span>Changing one amino acid in the protein hemoglobin causes sickle-cell anemia.</span>
