She didn't correct her wrong answers after the first test and she obviously didn't use the first test as a means of studying for the second one. If she had corrected her answers from the first test and studied properly for the second one then she would have known the answers to the questions.
Joints in both the skull and in the elbow move. however if you break a join in your elbow you will most likely survinve. if you break one in your skull you have a higher chance of death then you would if it had been your elbow.
