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Type: Open-Ended
Category: Respiration, Digestion, and Excretion
Level: Grade 8
Author: ytdiytd
Last Modified: 8 years ago

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Respiration, Digestion, and Excretion Question

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Grade 8 Respiration, Digestion, and Excretion

Describe what an ulcer is, being sure to include different parts of the digestive system in your answer.