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Type: Multiple-Choice
Category: Respiration, Digestion, and Excretion
Level: Grade 4
Score: 2
Author: trigg
Last Modified: 11 months ago

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Respiration, Digestion, and Excretion Question

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Grade 4 Respiration, Digestion, and Excretion

This substance, also known as "spit," is in your mouth to help break up food.
  1. medicine
  2. salt
  3. taste buds
  4. saliva
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