StriVectin is one of the leading names in stretch mark removal creams. This product claims to improve the appearance of both stretch marks and wrinkles, with visible results as early as two weeks after beginning a regular beauty regime. However, some marks may take up to eight weeks to show improvement.
Primary succession. Definition. noun. An ecological succession that occurs following an opening of uninhabited, barren habitat or that occurs on an environment that is devoid of vegetation and usually lacking topsoil. Supplement.
Secondary succession. 1  begins on soil from which previous community has been removed (by fire, agriculture, etc.) 2  old field succession. 3  example sere: grass -> shrub -> trees -> oak hickory forest.  secondary succession can proceed much faster because the soil has been prepared by the previous community.