Can someone please help me I need your help:( what has changed to the percentage of lone-parent families with children from 1981 to 2006 ? speculate why you think this change had taken place ??

answer; (d) anthropology;

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.