BI-665
The digestive system
Biology · Secondary 3 · Medium · The digestive system
Which statement correctly explains one way the small intestine is adapted for efficient absorption of digested food?
- It has a thick lining to protect against enzymes.
- It has many villi that greatly increase surface area.
- It has no blood vessels so food stays longer inside.
- It secretes bile to emulsify fats.
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