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Type: Multiple-Choice
Category: Respiration, Digestion, and Excretion
Level: Grade 6
Score: 1
Tags: Respiratory
Author: mjwhitaker
Last Modified: 15 days ago

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Respiration, Digestion, and Excretion Question

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Grade 6 Respiration, Digestion, and Excretion

What are attached to the air sacs and extend down from the bronchi?
  1. bronchioles
  2. arteries
  3. lungs
  4. trachea
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