Answer:
It has moving parts that allow it to move food through the body. .
Explanation:
The small intestine is part of the GIT, gastrointestinal tract, where the absorption of nutrients from the digested food takes.
This is possible because of the presence of villi in the small intestine. The villi increase the surface area of tissue available to absorb nutrients from the gut contents. This means that, the villi make available a greater surface area for absorption.
It should also be understood that the small intestine comprises of duodenum, jejunum and ileum.
In this case, the student is trying to show the parts of the duodenum that allow it to move food through the body.
