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Significats de blastosphere en anglès
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.
Veure'n mésSinònims
Examples for "blastula"
Examples for "blastula"
1
E stage with thirty-two cells; F blastula; G gastrula in longitudinal section.
2
The round cavity, filled with fluid, inside the real blastula is the segmentation-cavity.
3
The latter (blastula) is palingenetic, and precedes the formation of the gastrula.
4
Also, in every case, the gastrula develops from the blastula by curving or invagination.
5
This real blastula only differs from that of the primitive ova in its chemical composition.
Ús de blastosphere en anglès
1
This embryo, resembling a hollow rubber ball filled with fluid, is called a blastosphere.
2
The earliest one-celled protozoa were probably succeeded by many- celled animals of the type of the blastosphere, and these by gastrula-like organisms.
Col·locacions frequents
Blastosphere a través del temps