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Type: Multiple-Choice
Category: Respiration, Digestion, and Excretion
Level: Grade 9
Score: 1
Author: LBeth
Last Modified: 7 months ago

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Respiration, Digestion, and Excretion Question

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Grade 9 Respiration, Digestion, and Excretion

Which structure does letter D represent in the respiratory system diagram?
Respiratory System
  1. alveoli
  2. bronchiole
  3. bronchus
  4. lung
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