In humans,all three germ layers originate fro | vedclass

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(B) During embryonic development,the blastocyst consists of an outer layer called the trophoblast and an inner group of cells called the inner cell ma

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Inner cell mass

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(B) During embryonic development,the blastocyst consists of an outer layer called the trophoblast and an inner group of cells called the inner cell mass $(ICM)$. The inner cell mass contains the pluripotent stem cells that differentiate into the three primary germ layers: ectoderm,mesoderm,and endoderm,which eventually give rise to all tissues and organs of the body.

In humans,all three germ layers originate from:

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