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: mitosis is how organisms grow and repair themselves. 
Question: What is how organisms grow and repair themselves?

Answer: mitosis.


Question: Fact: Some parasites survive on the surface of their host. 
Question: Where so parasites go to survive?

Answer: on a host.


Question: Fact: Nuclear reactions in stars cause them to brighten up the summer sky. 
Question: Nuclear reactions in stars cause them to brighten up what?

Answer:
the summer sky.