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Type: Multiple-Choice
Category: Circulatory and Immune Systems
Level: Grade 6
Score: 1
Author: gregoryprudhomme
Last Modified: 24 days ago

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Circulatory and Immune Systems Question

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Grade 6 Circulatory and Immune Systems

Which component of blood fights bacteria and viruses?
  1. platelets
  2. red blood cells
  3. plasma
  4. white blood cells
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