I have now a couple of times missed pre-lab quiz questions because I didn't see them at all or all the sections. I see the initial question fully shown and have no indicator that there are other questions below. The interface is flat and has no tell. Even when you go to review, since you answered one of the parts of the questions there is no flag. So maybe to help students there can be some indication of parts of questions that aren't answered (on question or review) or a scroll bar or arrow if everything is not in view indicating there is more below for the question.