(b) Study and describe about the given permanent slide (B) with the help diagram. (B)>T.S. of Blastula of Frog.
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At the end of cleavage a mass of cell is formed known as blastula and is an sphere and has cavity known as blastoceal, in the frog's egg the blastoceal is small and apparently until about the 32 cell stage which is blastula. the cavity at this stage is large and filled with an albuminous fluid
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