this thing asks "what a part of the heart is?"... ...

this thing asks "what a part of the heart is?"... is this meant for freaking teens that actually study that part? or is it meant for 9 year old's that don't know anything about it... This thing also gives very inaccurate results. Some of the questions on the first part are too hard and some are way to easy. this thing sucks and I don't think you should waste your time on it.