blastula
Example Sentences
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Body symmetry is determined at the blastula stage.
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
After fertilization, the zygote develops into a blastula, which develops into a planula larva.
From Textbooks • Jan. 1, 2015
The blastula, which in some species is a hollow ball of cells, undergoes a process called gastrulation, during which the three germ layers form.
From Textbooks • Apr. 25, 2013
In the Amphioxus the earliest and most important embryonic processes take place so rapidly that the blastula is formed in four hours, the gastrula in six, and the typical vertebrate form in twenty-four.
From The Evolution of Man — Volume 2 by Haeckel, Ernst Heinrich Philipp August
