Answer:
The answer to this is DNA
True if one species goes extint then we could lose food from them
The name of the structure indicated by the question mark on this transverse cut of the developing embryo is the neural tube. This is further explained below.
<h3>What is a neural tube?</h3>
Generally, The neural tube is simply defined as the facilitator of the central nervous system
In conclusion, the neural tube is the brain and the spin.
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