Question

why are the walls of the small intestine thin
​

Answer 1

Answer:

The inner wall of the small intestine has adaptation so that substances pass across it quickly and efficiently: it has a thin wall, just one cell thick. it has many tiny villi to give a really big surface area.

Answer 2

Answer:

Adaptations for absorption

The inner wall of the small intestine has adaptation so that substances pass across it quickly and efficiently: it has a thin wall, just one cell thick. it has many tiny villi to give a really big surface area