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Type: Multiple-Choice
Category: Circulatory and Immune Systems
Level: Grade 9
Score: 1
Author: ptbabin
Last Modified: 13 days ago

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Circulatory and Immune Systems Question

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Grade 9 Circulatory and Immune Systems

The proteins carried on red blood cells that determine your blood type are called
  1. pathogens
  2. platelets
  3. antigens
  4. plasma
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