A<, span> Maulbeerform, Morula; B Blastula; C<, span> D<, span> Becherkeim, Darmlarve; D<, span> Gastrula." />
Fig. 5. A Maulbeerform, Morula; B Blastula; C D Becherkeim, Darmlarve; D Gastrula.
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