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In an earthworm, which organ stores the food after it leaves the esophagus?
AThe crop organ
BThe gizzard sac
CThe intestine
DThe cloaca vent
Answer & Solution
Correct answer: A. The crop organ
1. Food enters the earthworm through the mouth and passes down the esophagus.
2. It is then stored in an organ called the crop.
3. From the crop it moves to the gizzard, where it is churned and digested.
4. Nutrients are absorbed in the intestine and waste leaves as castings.
_Source: OpenStax Biology 1e (CC BY 4.0), Ch 34 "Animal Nutrition and the Digestive System", section Invertebrate Digestive Systems_
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