Someone has told me that this is a counterexample for the negative feedback. Would you please explain it? @AriHoresh
i am pretty late to be answering this but in a reproductive system such as the birth of a child as the contractions increase they make more contractions which will be positive feedback. but in most of the other systems in our bodies usually, with the hormones, the product will inhibit the secretion of the enzyme.
it’s not a fully explanation but this is what I know! hope it helps