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

A: reindeer.
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Q: Fact: Most invertebrates have brains capable of learning. 
Question: Most invertebrates have brains capable of what?

A: learning.
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Q: Fact: clams have a circulatory system with one or two hearts that pump blood. 
Question: what have a circulatory system with one or two hearts that pump blood?

A:
clams.
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