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The first two ruminant stomachs host prokaryotes and protists that digest:

ACelestine
BCellulose
CCellophane
DCelluloid
Answer & Solution
Correct answer: B. Cellulose
1. Plant cell walls are made of it. 2. Animal enzymes cannot break it down. 3. That material is cellulose. _Source: OpenStax Biology 2e, Chapter 34, Animal Nutrition and the Digestive System._
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