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Type: Multiple-Choice
Category: Respiration, Digestion, and Excretion
Level: Grade 8
Author: kdeaton
Last Modified: 6 years ago

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Respiration, Digestion, and Excretion Question

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Grade 8 Respiration, Digestion, and Excretion

After air is inhaled, where does the exchange of oxygen take place?
  1. in the lungs, from the alveoli to the capillaries
  2. in the blood, from the alveoli to the blood vessels
  3. in the lungs, from the bronchi to the trachea
  4. in the blood, from the white blood cells to red blood cells