Somites Notochord Neural plate Neural fold Neural canal Which primary germ layer forms the neural tube? Name the structure (on the diagram) which gives rise to the ventricles of the brain.(two word answer) A E D- (a) 19 days (b) 20 days H. K (e) 22 days (4) 26 days Adapted from original image Copyright OThe McGraw-Hill Companies, Inc

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