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.
As a result, the age classification at highest level of detail calls for more single-year categories than any of the previous subject areas. Thus, at the highest level of detail, data presentation by single years is recommended for ages lo-24 and 55-74, with five-year groups for ages 25-54 and 75-84.