[논문문장]

1. stem cell migrates to the outer surfce to form the corticla plate2. Initially, all this happens in the absence of vasculature, relying simply on diffusion of nutrients3. However, as more neurons are generated, the cortical plate thicknes beyond the diffusion limit, so that angoigenesis is needed to nourish the nascent neurons.-----1.A는 B에 원인이 되는 특징을 보여준다. A exhibits several anatomic features that thought to be responsible for B2. 특징설명Not only is it bigger than expected compared with the brains of other species, but certain regions are relatively enlarged.3...........

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