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Type: Multiple-Choice
Category: Circulatory and Immune Systems
Level: Grade 4
Score: 7
Author: trigg
Last Modified: 8 months ago

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Circulatory and Immune Systems Question

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Grade 4 Circulatory and Immune Systems

Your heart
  1. is a muscle.
  2. carries carbon dioxide to your cells.
  3. holds your emotions.
  4. all the above
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