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Type: Multiple-Choice
Category: Respiration, Digestion, and Excretion
Level: Grade 7
Score: 1
Author: Mgeimer
Last Modified: 6 years ago

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Respiration, Digestion, and Excretion Question

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Grade 7 Respiration, Digestion, and Excretion

What is the primary function of the digestive system?
  1. keeping blood moving through the body
  2. taking in oxygen and releasing carbon dioxide
  3. keeping your body alive
  4. breaking down and absorbing energy and nutrients from food