The stomach is a part of the alimentary canal. The stomach only secretes one enyzme, and thats proteas to help in the digestion of food it also secretes hydrochloric acid. As we all know enyzme helps to work on the protein, so what does hyrochloric acid do? It helps to kill the foreign bacteria, this is also one of the reasons why the stomach is so acidic, cause it contains hydrochloric acid.
sorry, i dont know why all the videos i upload all turns out like that, i'll try to solve the problem meanwhile, just double click on the video so that it directly leads you to youtube and you can watch it from there, sorry.
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