Why Does Most Of The Absorption Occur In This Organ And Not Earlier In The Gi Tract?

Why does most of the absorption occur in this organ and not earlier in the GI tract?

 

Answer:

Food is increasingly broken down into smaller units through the process of digestion as it travels from the mouth to the small intestine. Therefore, many of the molecules are not small enough to be absorbed prior to the small intestine.

Explanation:

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