"101461646"^^ . "0"^^ . "101385119"@en-us . . "early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs"@en-us . . . "blastula"@en-us . . . . "100987661"@en-us . "blastosphere"@en-us . "01461646-n"^^ . . . "0"^^ . "101385468"@en-us . "blastula"^^ . . .