What are the rule of 3's for the 3rd week of development?

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What are the rule of 3's for the 3rd week of development?..

Answer / biomaster

3 germ layers (gastrula): ectoderm, mesoderm, endoderm.

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What are the rule of 3's for the 3rd week of development?..

Answer / xara

Formation of 3 germ layers
ectoderm,endoderm,mesoderm
Formation of three important structures
notochord,neural plate,primitive streak
3 carnegie
3 chorionic villi

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What are the rule of 3's for the 3rd week of development?..

Answer / faiza

changes of bilaminar germ disc into trilaminar germ disc
3 germ layers( ectoderm, mesoderm, endodem)

- formation of notochord
- chang in the trophoblast

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