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What is the name of the stiff nonconducting rod that develops down the back of the embryo of all chordates?

A. dorsal nerve cord
B. nerve net
C. ganglia
D. notochord

2 Answers

3 votes
Totally agree.....Its the notochord
User Nagarajannd
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1 vote
the answer is D. notochord 
User Andreas Lorenzen
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