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.

Input: Consider Input: Fact: Chromosomes are units of information causing traits to be passed down to offspring. 
Question: Chromosomes are units of information causing traits to be what to offspring?

Output: passed down.


Input: Consider Input: Fact: Color and going underground helps conceal from predators. 
Question: What are two ways animals conceal themselves from predators?

Output: Staying underground and camouflaging their eggs.


Input: Consider Input: Fact: energy is used for heating buildings. 
Question: What is energy used for?


Output: heating buildings.