exactly! I found it harder than the biology unit 2 as resit i did in january, and that one is meant to be harder! As soon as i saw that spirometer thing i died a little inside, why do they love putting that in there?!
Same!! I did that resit too in January! Urgh, i hated the artery and spirometer question! Don't understand how people can call this paper easy.
eventually as the air is being exhaled, the pressure gradient will diminish thus some air will be left in the lungs without a pressure gradient thus it does not flow out