BB cream is promoted as an all-in-one facial cosmetic product to replace serum, moisturizer, primer, foundation and sunblock. It can be worn alone as a tinted moisturizer, over serum and moisturizer as a regular foundation, and under powder, depending on the desired amount of coverage. 1  1 History.  2 Formulations.
Definition. Naturalistic observation is research that involves studying the subject of interest in its own environment, as it would occur in day-to-day life. The subject of interest may be human or non-human or it can be the behavior of living things or the interactions of non-living things with their environment.
Unlike realism, which focuses on literary technique, naturalism implies a philosophical position: for naturalistic writers, since human beings are, in Emile Zola's phrase, human beasts, characters can be studied through their relationships to their surroundings. modified definition appears in Donald Pizer's Realism and Naturalism in Nineteenth-Century American Fiction, Revised Edition (1984) : The second tension involves the theme of the naturalistic novel.