blastosphere

Example Sentences

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The blastosphere, growing beyond its limits, folds into a cup-shaped organism.

From The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development by Hertwig, Oscar

The central part of the blastosphere is called the segmentation cavity or blastocoel.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" by Various

The cavity of the blastosphere, or segmentation cavity.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah

The conditions for the origin of the blastosphere come into existence only by the process of segmentation, and it is only by its capacity to divide that the egg contains the conditions for blastosphere formation.

From The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development by Hertwig, Oscar

In this process a portion of the blastosphere wall is the tucked into the rest, as indicated by the arrow, so that a two-layered sack is formed.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)