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What is a trait that is ancestral to all chordates? A. a jaw bone B. a notochord C. an amniotic egg D. a vertebral column
A trait that is ancestral to all chordates is the notochord.
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Asked 12/19/2015 10:39:17 AM
Updated 12/19/2015 11:15:33 AM
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This answer has been confirmed as correct and helpful.
Edited by Janet17 [12/19/2015 11:15:31 AM], Confirmed by Janet17 [12/19/2015 11:15:33 AM]
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