muscles are designed to work in pairs |
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muscles work in pairs |
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muscles work in antagonistic pairs |
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skeletal muscles work in pairs |
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muscles always work in pairs |
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muscles always work in antagonistic pairs |
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voluntary muscles work in pairs |
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skeletal muscles have to work in pairs |
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muscles need to work in pairs |
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most muscles work in pairs |
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muscles have to work in pairs |
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muscles work in pairs to move a limb |
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muscles work in pairs to move a bone |
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muscles work in antagonistic pairs briefly |
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muscles work in pairs to make of the body move using the biceps and triceps |
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muscles work in pairs to move the body |
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muscles work in pairs to produce movement |
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