Presence of certain type of bacteria in intestinal tract can also affect the color of human stools. Salmonella, a type of bacteria, if enters in human intestine or digestive tract, could disturb its functioning and result in change in color of stools. This could be easily treated with antibiotics.
Many critics have suggested that there is no clear distinction between realism and its related late nineteenth-century movement, naturalism. As Donald Pizer notes in his introduction to The Cambridge Companion to American Realism and Naturalism: Howells to London, the term realism is difficult to define, in part because it is used differently in European contexts than in American literature.
Artists by Movement:Realism Mid-19th Century Realism is an approach to art in which subjects are depicted in as straightforward a manner as possible, without idealizing them and without following rules of formal artistic theory.The earliest Realist work began to appear in the 18th century, in a reaction to the excesses of Romanticism and Neoclassicism.ealism is an approach to art in which subjects are depicted in as straightforward a manner as possible, without idealizing them and without following rules of formal artistic theory.