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Type: Multiple-Choice
Category: Respiration, Digestion, and Excretion
Level: Grade 5
Score: 2
Author: awillis
Last Modified: a month ago

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Respiration, Digestion, and Excretion Question

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Grade 5 Respiration, Digestion, and Excretion

The system responsible for carrying gases between the outside and the blood is the
  1. respiratory system.
  2. digestive system.
  3. excretory system.
  4. circulatory system.
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