blastosphere是什么意思
2023-11-29 19:13:16
blastosphere
sp. 囊胚
近义词：blastula，
英英释义
Noun
- 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