BI-2017
Root hair cells
Biology · Secondary 4 · Medium · Root hair cells
Microvilli line the inner surface of the small intestine. What is the main way this adaptation increases the rate of absorption of digested food?
- They increase the thickness of the epithelium.
- They increase the surface area for absorption.
- They decrease the number of capillaries needed.
- They secrete enzymes to digest proteins.
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