instruction:
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.
question:
Fact: hormones control heart rate. 
Question: What do hormones control?
answer:
Heart rate.


question:
Fact: memory cells help keep people from getting sick. 
Question: What helps keep people from getting sick?
answer:
Memory cells.


question:
Fact: Cobra bobos can be found in moist soil near rivers and streams in tropical regions. 
Question: Where in tropical regions can you find cobra bobo?
answer:

in moist soil.