17=3
18=4
I'm not that sure about 17, but I think it's right
I need more points. That's why I am awnsering this, sorry.
The three methods of carbon dioxide transport in the blood are dissolution in blood plasma, binding to hemoglobin, and carried in the form of bicarbonate. About 7% of the carbon dioxide is dissolved in the blood plasma. The majority of the remaining 93% is carried as part of the bicarbonate buffer system while the rest binds to hemoglobin.
The answer should be an unconformity