Do you cover the whole book? Like do you have videos going up to chapter 29? My class has been checking out your videos, so you might notice that your views are going up. One person talked about your lecture on here and now a lot of us have been watching your videos to get a little more clarity on the chapters that we are going over now. You are awesome!!!!!!!! Also...…..How does the duodenum differ from the ileum? My teacher has this question as one of our study guide questions and I think that I might confusing myself and the answer is right in front of me.

Why do folds increase surface area?

Folds on top of folds on top of folds 💀💀💀