For the first one you can use learning that Kaylee has research that some spiders are very venomous and can cause serious harm to other organisms so this contributed to her fear. For the biological/evolutionary approach you can say that through early(or earlier) human’s experiences, spiders have been proven to be dangerous and caused fear that has remained throughout all this time in order to help help us survive. I’m not sure about OCD. Sorry:/
When the bar magnet is broken in half two resulting halves both have north and south magnetic pole. In the place where it was broken there are opposite magnetic poles.One of two hlaves would be attracted by magnet on the right and another would be reppeled.
