Formation of segmentation cavity shows
Rearrangement of cells
Blastula stage
Epiboly
Emboly
(b)This segmentation cavity is known as blastocoel.
$A$ : In morula stage the cells divide without any increase in size. $R$ : Zona pellucida remains intact till cleavage is completed.
In which stage of development the embryonic cells form the germinal layers by the movement
The outer layer of the blastocyst which forms the ectoderm is called
Fraternal twins in man are produced when
Cleavage is found in
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