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: reindeer adapt to the Arctic's temperatures. 
Question: What adapts to the temperatures of the Arctic?

Answer: reindeer.


Question: Fact: the functions of life require energy. 
Question: What is energy required for?

Answer: The functions of life.


Question: Fact: Ejaculation is semen passing out of the body through the urethra. 
Question: What is it called when semen passes out of the body through the urethra?

Answer:
ejaculation.