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Biology 8 Online
OpenStudy (anonymous):

Amelia is running a marathon. How do her muscular and skeletal systems work together to allow her to run? A. The muscles in her leg relax and contract to move the bones. B. The muscles in her leg transport nutrients to the bones. C. The bones in her leg relax and contract to move the muscles. D. The bones in her leg transport nutrients to the muscles.

OpenStudy (anonymous):

A

OpenStudy (anonymous):

winner :)

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