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What rod provides stiffness to counterbalance the pull of muscles?

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asked Jan 7 in Science by NNIBetty2398 (490 points)

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answered Jan 7 by LillianWirth (290 points)

notochord

The notochord lies between the dorsal nerve cord and the digestive tract. It provides stiffness to counterbalance the pull of muscles.

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What rod provides stiffness to counterbalance the pull of muscles?

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