In the two leaves experiment to prove how our stomach walls are protected, we use
grease or petroleum jelly and weak acid. With which parts of the body do we compare
these materials.
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Answer: Take two similar green leaves and apply petroleum jelly or Vaseline or grease on one leaf, while leaving the other as it is. ... Now, the function of the petroleum jelly can be compared to that of the mucus lining of the stomach wall. This proves that the stomach gets protected from its own acid secretions.
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