Before leaving her home, margaret checks that every window and door is locked. she checks everything seventeen times according to a strict ritual that she has worked out. if she misses one window or door she must begin all over again. if she tries to skip any step of the ritual, she experiences unbearable anxiety. margaret is probably suffering from:

   Obsessive-compulsive disorder

Explanation:  This mental disorder, which is characterised by unwanted repetitive thoughts and in order to get rid of those thoughts, those suffering from this mental disorder resort to obsessive-compulsive actions, that is, actions that are repeated numerous times. As a result of this disorder, Margaret has thoughts that are obsessive and possessing her do not give her peace of mind until she has checked everything countless times, triggered exactly by that obsession. Also, due to this disorder, if one of the common steps is missed during the obsessive repetition of actions, there is a panic fear, that is, anxiety that results from not solving the obsessive thoughts.

gold discovery in california, and pioneer settlers were sometimes pulled west because they wanted to make a better living. others received letters from friends or family members who had moved west. these letters often told about a good life on the frontier. the biggest factor that pulled pioneers west was the opportunity to buy land.

welcome mark brainliest i am trying to get to the next level.

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.