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One of the easiest ways that companies can avoid animal exams are to use items that are already extensively found in human history and also have proven their safety over time. Companies could also depend upon data from natural and synthetic ingredients which are already previously tested on animals. Computer modeling and databases may be used to determine biological properties of ingredients and make risk assessments. Making use of lines in photography is really a photographic composition technique used by many professional photographers, and for good reason. Lines - also referred as 'Leading Lines" - enables you to lead a persons vision to the point of interest and prevent a person's eye from wandering. Lines can put emphasis on distance or illustrate a relationship to foreground and background elements. Keep in mind that using lines incorrectly will surely have the alternative effect and lead the attention out of the a growing concern.