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Type: Multiple-Choice
Category: Respiration, Digestion, and Excretion
Level: Grade 7
Author: Meggan
Last Modified: 6 years ago

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Respiration, Digestion, and Excretion Question

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Grade 7 Respiration, Digestion, and Excretion

The system that removes waste and filters blood is the                 system.
  1. digestive
  2. endocrine
  3. excretory
  4. reproductive