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Type: Multiple-Choice
Category: Respiration, Digestion, and Excretion
Level: Grade 5
Score: 4
Tags: respiratory system
Author: megsmill
Last Modified: 7 months ago

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Grade 5 :: Respiration, Digestion, and Excretion by megsmill
Which system works with breathing oxygen into the lungs?
  1. digestive system
  2. respiratory system
  3. nervous system
  4. excretory system
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