Hi! are you an undergraduate student?
If so, my understanding is that "yes" next to the "No prior tertiary study" section means that you have not completed any prior undergraduate study (i.e. it has been verified that you are an undergraduate student and not a postgraduate student).
Bond does not have a minimum GPA requirement. This is because it varies every year with every new cohort of applicants. However, based on data from previous years, a minimum gpa greater than 6/7 is generally required to receive a psychometric test invite.