instruction:
Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
question:
Question: Metabolism is controlled by regulation of what? Answer: enzyme activity
answer:
8.5 Regulation of enzyme activity helps control metabolism.

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Question: Fungi are unique in having cell walls made of what? Answer: chitin
answer:
Fungi are a kingdom in the domain Eukarya that includes molds, mushrooms, and yeasts. Most fungi are multicellular. They are unique in having cell walls made of chitin.

question:
Question: Which of the animals digest cellulose with the aid of methanogens? Answer: cows
answer:
Stuart Chalmers. Cows digest cellulose with the aid of methanogens . CC BY 2.0.