Onychogryphosis, also known as âramâs horn nails,â is a condition in which the toenails become thickened and the curve of the nails becomes more severe, making them difficult to cut and causing them to grow into a long, curved shape resembling a ramâs horn.
Scientific taxonomy. Basic level categories, or generic level categories, are those categories in a folk taxonomy which are most culturally salient, and meet our basic cognitive needs the best.cientific taxonomy. Basic level categories, or generic level categories, are those categories in a folk taxonomy which are most culturally salient, and meet our basic cognitive needs the best.
The simplest level of the structural hierarchy isthe chemical level, which we study in Chapter 2. At this level, atoms, tiny building blocks of matter, combine to form molecules such as water and proteins.Molecules,in turn,asso-ciate in speciï¬c ways to form organelles, basic components ofthe microscopic cells.