Given a scientific question, generate a correct answer to it.

Q: During which phase does dna replication occur in the cell cycle?

A: synthesis
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Q: A black solid by itself, this element is incredibly important because of what it makes when it combines with many other elements, including oxygen?

A: carbon
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Q: What is a suggested explanation for a phenomenon or a suggested explanation for a relationship between many phenomena called?

A:
hypothesis
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