Blastomer deb nimaga aytiladi?

A) zigotaning dastlab meridian boylab bolinishi va bir-biriga teng ikkita hujayra hosil bolishiga *
B) blastula devorining bir qavat hujayralardan tashkil topishiga
C) homilaning ikki qavatli bosqichi hosil bolishiga
D) gastrula ichidagi boshligining hosil bolishiga
E) В, C, D