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The gizzard grinds up all the food to the intestine can absorb it. The inward fold of the intestine, also known as the typhlosole, adds surface area to the intestine. That gives the earthworm's intestine more absorptive surface area. The gizzard and the inward flap of the intestine work together to let the worm absorb more of what it takes in.

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16y ago

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