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.

[EX Q]: Fact: smoking cigarettes decreases stamina. 
Question: what decreases your stamina when you smoke it?
[EX A]: cigarettes.

[EX Q]: Fact: marine and benthic creatures lack respiratory and excretory systems. 
Question: what creatures lack respiratory and excretory systems?
[EX A]: marine and benthic.

[EX Q]: Fact: camouflage is used for protection by prey against extinction. 
Question: camouflage is used for protection by prey against?
[EX A]:
extinction.