Answer:
The binge-purge cycles of bulimia nervosa must be present for at least 3 months in order to be diagnosed.
Explanation:
Bulimia nervosa: In abnormal psychology, the term "bulimia nervosa" is also referred to as "bulimia", and is described as an individual experiencing eating disorder and is distinguished as binge eating which is generally followed by the feeling to purge.
Bulimia is most often associated with several other mental illnesses including anxiety, depression, etc.
Signs: Self-induced vomiting, irritability, various episode of binge eating, etc.
A complementary good<span> or </span>complement<span> is a </span>good<span> with a negative cross flexibility of demand, in opposite to a substitute </span>good<span>. </span>
<span>Philosophy is not considered a science because it doesn't use empirical measurements instead uses logical analysis and conceptual clarification. Also, a philosophy once established is not subjected to readjustments where as science can be subjected to some degree of readjustments.</span>