| 21. | The endoderm is amongst the three germ layers that make up the developing embryo.
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| 22. | In mice, this structure is known as the Anterior Visceral Endoderm ( AVE ).
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| 23. | In triploblastic organisms, the three germ layers are called endoderm, ectoderm, and mesoderm.
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| 24. | In the absence of Nanog, mouse embryonic stem cells differentiate into visceral / parietal endoderm.
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| 25. | In mice, Chordin is expressed in the node but not in the anterior visceral endoderm.
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| 26. | These " Symbiodinium " occur within vacuoles in host cells derived from the endoderm.
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| 27. | During development, definitive endoderm and ectoderm differentiates into several gastrointestinal epithelial lineages, including endocrine cells.
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| 28. | The tube is lined by endoderm from which the epithelial lining of the respiratory tract is developed.
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| 29. | These three " germ layers " are known as the ectoderm, mesoderm, and endoderm.
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| 30. | The mesoderm forms at the same time as the other two germ layers, the ectoderm and endoderm.
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