blastula
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The blastula is often a hollow ball of cells.
From Textbooks ● Jun. 9, 2022
During gastrulation, the blastula folds upon itself to form the three layers of cells.
From Textbooks ● Jun. 9, 2022
After fertilization, the zygote develops into a blastula, which develops into a planula larva.
From Textbooks ● Jan. 1, 2015
The cells in the blastula then rearrange themselves spatially to form three layers of cells.
From Textbooks ● Apr. 25, 2013
When the blastula is fully formed, we have again in this case the important folding or invagination that determines gastrulation.
From The Evolution of Man — Volume 1 by Ernst Heinrich Philipp August Haeckel
For Ptychodera, extensive EST data from egg, blastulae, gastrulae, larvae, juveniles, adult proboscis, stomochord, and gills defining 34,159 cDNA clones53, and 879,000 Roche/454 RNAseq reads from a mixed library of developmental stages54 were used.
From Nature ● Nov. 17, 2015
Near the end of my visit, our conversation turned from the theoretical consideration of morulas and blastulas to the specific realities of my own condition and treatment.
From Slate ● May 23, 2012
I picture the embryos themselves: round blastulas, with evenly divided cells.
From Slate ● May 23, 2012
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