Which of the following is correct statement
Which of the following is correct statement
- [AIPMT 1990]
- A
In blastulation major presumptive and organ forming areas are segregated into definite points of the blastoderm
- B
Blastulation establishes the three germinal layers
- C
Blastulation of frog is known as discoblastula
- D
Fluid filled space in blastula is known as archenteron
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