निम्नलिखित में से कौन सा क्रम मुख से लेकर आमाशय और फिर छोटी आंत तक के पीएच (pH) वातावरण के बदलाव को सही ढंग से दर्शाता है?

The digestion process initiated by amylase in saliva leads to the breakdown of carbohydrates into __________.

The process initiated by amylases in saliva leads to the breakdown of carbohydrates into ______.

Which substance is secreted by gastric glands to protect the inner lining of the stomach from the action of hydrochloric acid under normal conditions?