A.It is only-single layered
B.During its formation involution and invagination processes occur
C.Blastopore and archenterons are not formed
D.The archenterons is filled with fluid
A.It is only-single layered
B.During its formation involution and invagination processes occur
C.Blastopore and archenterons are not formed
D.The archenterons is filled with fluid