blastopore
Americannoun
Other Word Forms
Etymology
Origin of blastopore
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
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
In both protostomes and deuterostomes, the gastrula, which resembles a hollow ball of cells, contains an indentation called a blastopore.
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
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 foregut is here more inclosed, and the notochord, nt, having separated from the entoderm, en, is seen as a distinct layer of cells extending from the foregut to the blastopore.
From Development of the Digestive Canal of the American Alligator by C. M. Reese
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
