blastopore
Americannoun
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Etymology
Origin of blastopore
Example Sentences
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Amniotes, like chickens and humans, will have developed a primitive streak, the precursor to the brain and skin, while fish and amphibians will have developed a spherical-shaped blastopore.
From Science Daily ● Dec. 15, 2023
Recent evidence has challenged this view of the development of the blastopore of protostomes, however, and the theory remains under debate.
From Textbooks ● Jan. 1, 2015
The body plan of the deuterostome at this stage looks very similar to that of the protostome, but the blastopore becomes the anus, and the second opening becomes the mouth.
From Textbooks ● Jan. 1, 2015
The blastopore forms the anus of the alimentary system in the juvenile and adult forms.
From Textbooks ● Jan. 1, 2015
The best case to examine is that of Peripatus capensis, in which the blastopore is at first a long slit, and gives rise to both the mouth and the anus of the adult.
From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" by Various
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