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: Blood is a fluid tissue that delivers oxygen and nutrients to other tissues. 
Question: What delivers oxygen and nutrients to other tissues?
[A]: Blood.


[Q]: Fact: Pollution is usually harmful to population size of a species. 
Question: What is usually harmful to the population size of a species?
[A]: Pollution.


[Q]: Fact: The spinal cord links the cerebellum to the rest of the body. 
Question: What does the spinal cord link to the rest of the body?
[A]:
cerebellum.