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

Q: What is the product of microfilament movement powered by chemical energy?

A: muscle contraction
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Q: What is the most abundant biochemical compound?

A: cellulose
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Q: Which virus causes cold sores?

A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
herpes virus
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