单语范例（未经PONS编辑处理）
英语
- This dent, the blastopore, deepens to become the archenteron, the first phase in the growth of the gut.en.wikipedia.org
- The developing digestive tube of an embryo forms as a blind pouch called the archenteron.en.wikipedia.org
- Maternal hyalin persists throughout development and appears in the archenteron of the gastrula.en.wikipedia.org
- Following ingression, a blastopore develops where the cells have ingressed, in one side of the embryo and it deepens to become the archenteron, the first formative stage of the gut.en.wikipedia.org
- Cells migrating inward along the archenteron form the inner layer of the gastrula, which develops into the endoderm.en.wikipedia.org
- The open end of the archenteron is called the blastopore.en.wikipedia.org
- The stage starts with the gastrula; as the archenteron forms, pockets of migrating cells also form, creating another layer between the endoderm and ectoderm, the mesoderm.en.wikipedia.org
- This narrowing and lengthening of the archenteron is driven by convergent extension.en.wikipedia.org
- Another invagination of the surface will fuse with the tip of the archenteron as the mouth while the interior section will become the gut.en.wikipedia.org
- The bottom of the archenteron is composed of macromeres.en.wikipedia.org
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英语