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Type: Multiple-Choice
Category: Circulatory and Immune Systems
Level: Grade 8
Author: Gem221984
Last Modified: 6 years ago

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Circulatory and Immune Systems Question

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Grade 8 Circulatory and Immune Systems

What purpose do red blood cells serve in the circulatory system?
  1. carry oxygen around the body
  2. carry carbon dioxide around the body
  3. fight infections
  4. clot blood