Final answer:
The typhlosole in earthworms increases the surface area available for nutrient absorption in the intestine.
Step-by-step explanation:
The typhlosole in earthworms contributes to their ability to absorb nutrients by increasing the surface area available for absorption in the intestine. The typhlosole is a fold in the intestinal lining that extends into the lumen of the intestine, creating a larger surface area for nutrient absorption.
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