Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

Q: Fact: Digestion is the process of breaking down food proteins into energy or heat. 
Question: What is the process of breaking down food proteins into energy or heat?

A: digestion.
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Q: Fact: male dogs use natural aphrodisiacs in urine to mark their territory. 
Question: what do male dogs use in their urine to mark their territory?

A: natural aphrodisiacs.
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Q: Fact: Amphibians are predators of insects. 
Question: What are amphibians predators of?

A:
Insects.
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