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.
In Music and Art. As intellectual and artistic movements 19th-Century Realism and Naturalism are both responses to Romanticism but are not really comparable to it in scope or influence. For one thing, realism is not a term strictly applicable to music.s intellectual and artistic movements 19th-Century Realism and Naturalism are both responses to Romanticism but are not really comparable to it in scope or influence.