Question

What is the role of
Saliva and villi​

Answer 1

Answer:

1) Saliva contains enzymes like salivary amylase that helps in the breakdown of starch in the mouth. ... 2) The HCl is released from the walls of the stomach, it helps in making the medium acidic so that the enzyme pepsin could act on the food, and the breakdown of proteins could be started

villi helps in the increase of surface area for absorption and they are connected to blood vessels

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