Inner sex organs of woman were excised in surgical operation. Embryo which consists of 16 tightly packed blastomeres was found in histological research of these organs. What is the name of this embryo?

Inner sex organs of woman were excised in surgical operation. Embryo which consists of 16 tightly packed blastomeres was found in histological research of these organs. What is the name of this embryo?

1.  Celoblastula


2.  Periblastula


3.  Blastocyst


4.  Amphyblastula


5.  *Morula