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OpenStudy (anonymous):

What happens when ATP supplies energy for thin filaments in a muscle fiber to slide over the thick filaments? A. The muscle contracts. B. The muscle relaxes. C. The muscle both contracts and relaxes. D. The muscle neither contracts nor relaxes

OpenStudy (lanre):

the muscle contracts

OpenStudy (carniel):

Lan you just cant give them answer. You have to explain why.

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