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*Without the tail bud, the notochord would run out of cells before the hindlimb could be made.
 
*Without the tail bud, the notochord would run out of cells before the hindlimb could be made.
 
*In animals that have tails, cells at an additional site undergo gastrulation.
 
*In animals that have tails, cells at an additional site undergo gastrulation.
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<big><center>[[Developmental Biology - Anatomy & Physiology|'''BACK TO DEVELOPMENTAL BIOLOGY]]</center></big>
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