Trying an intermediate plants quiz. The first and third questions were identify a plant as one of four graminoids. One wasn't really identifiable beyond being a grass, but fortunately there was only one grass among the alternatives offered.
The 4th question was to identify Lotus creticus. Apart from the problem that it wasn't clear whether it was the legume or the mesembryanth one was supposed to identify, Lotus creticus is not a British plant: the quizzes should pay attention to the community.
Question 6 was to identify a plant as one of 4 similar mosses. I guessed right on the basis of subulate leaves.
Question 7 was to identify a dandelion species as one of four images (possibly all Asteraceae); two of the images were dandelions. That puts the question at expert or beyond, not intermediate.
Question 8 was to identify whorled caraway, which I don't know. I might have had a chance if there were any flowers or fruits showing, but the quiz used a purely vegetative specimen.
It looks as if easy quizzes pick multiple choices from the same divisions, and intermediate quizzes from the same order.