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: competition helps species survive. 
Question: What helps species survive?
[A]: competition.


[Q]: Fact: Flames convert chemical energy into light and heat energy. 
Question: What do flames convert chemical energy into?
[A]: light and heat energy.


[Q]: Fact: Most of the interior of the plant fills the space between the dermal tissue and vascular tissues. 
Question: Where does most of the space of the interior plant fill?
[A]:
dermal & vascular tissue.