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: many chemical messengers that control body functions are proteins. 
Question: What are many chemical messengers that control body functions?

A: proteins.
****
Q: Fact: Coral Reefs are found in the salt water of the ocean. 
Question: what are found in the salt water of the ocean?

A: Coral Reefs.
****
Q: Fact: TRH stimulates the pituitary gland to maintain structural integrity of the thyroid. 
Question: What stimulates the pituitary gland in order to maintain structural integrity of the thyroid?

A:
TRH.
****