NOTHING. Well that could be right but also if your body can not produce enough mucus, your body could cause you to get an ulcer.
If the stomach didn't produce enough mucus, "it would not be able to cancel out its own stomach acid and woulsd basically digest itself."
Yes, a famine could happen today a famine happens when farmers can not produce enough crop to feed everyone.
If your body could not produce antibodies, it would not be able to fight infection. This could cause death in the event that you became sick.
If glycolysis could not happen in a cell, the cell would not produce ATP molecules.
you could get sick and have a stomach ache
The main functions of HCl is killing microorganisms and bacteria. it also aids in digestion as it helps breaking down ingested food into small soluble particles which are then taken up by the blood stream. Reverse will happen if the stomach stops producing HCl.
If glycolysis could not happen in a cell, the cell would not produce ATP molecules.
if its hot enough they could faint
Yes, organic farming could produce enough food for all, though not all would agree with that.
They could not produce seeds which is for reproduction.
If you do not have enough iron many things could happen. You could become anemic as well as extremely fatigued.
Having a stomach virus does not mean that the virus is in the stomach. Few germs could live in the acid there. What stomach virus refers to is a virus infection in the entire body that happens to cause nausea and expulsion of the stomach's contents and also diarrhea in the intestines.