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Type: Multiple-Choice
Category: Circulatory and Immune Systems
Level: Grade 9
Author: nikkib76
Last Modified: 6 years ago

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Circulatory and Immune Systems Question

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Grade 9 Circulatory and Immune Systems

Which statement accurately describes the primary function of red blood cells, or erythrocytes?
  1. to transport oxygen to and carbon dioxide away from cells in the body
  2. to defend the human body from germs, viruses, and bacteria
  3. to produce various clots
  4. to transport nutrients to various organs