Animals cannot digest cellulose with their own enzymes, so the work is done by:
AMicrometers
BMicrophones
CMicrobes
DMicroscopes
Answer & Solution
Correct answer: C. Microbes
1. Something in the gut must break it down.
2. The animal's own enzymes cannot.
3. Microorganisms do the job.
_Source: OpenStax Biology 2e, Chapter 34, Animal Nutrition and the Digestive System._
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