The inner cell mass of the blastula forms:

A. a bilaminar embryo consisting of the
epiblast and the hypoblast.
B. a trilaminar embryo consisting of the
epiblast, the mesoblast, and the hypoblast.
C. a gastrula consisting of a trilaminar
embryo.
D. a trilaminar embryo consisting of
ectoderm, endoderm, and mesoderm.
E. a bilaminar gastrula consisting of the
epiblast and the hypoblast.


A

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