blastula
Example Sentences
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Once you are confident about your identification, begin to record the stage of each cell you encounter as you scan left to right, and top to bottom across the blastula section.
From Textbooks • Jun. 9, 2022
Body symmetry is determined at the blastula stage.
From Textbooks • Jun. 9, 2022
Here the cells in the blastula arrange themselves in two layers: the inner cell mass, and an outer layer called the trophoblast.
From Textbooks • Jun. 9, 2022
Gastrulation is the process in which the cells in the blastula rearrange themselves and form three layers of cells.
From Textbooks • Jun. 9, 2022
In many of the lower animals the blastula is not developed within the foetal membranes, but in the open water.
From The Evolution of Man — Volume 2 by Haeckel, Ernst Heinrich Philipp August