Hello Daniel,
Getting 70 percentage in biology after studying only for three months is very good . I think you have got a good study and I suggest you revise what you studied one time and the leftover portion one time and write the mock test again. You will improve your marks and also check for the wrong answers and go through those portion once. You will improve your marks.
Thank you
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile