blastosphere
Example Sentences
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The cells of the lower half of the blastosphere are slightly larger than those of the upper half.
From The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 by John Mason Tyler
The segmentation is complete; one side of the hollow blastosphere invaginates and forms a gastrula.
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various
There is no open invagination of an archenteron in the fowl, as in the frog--, the gastrula, like the blastosphere, stage is also masked.
From Text Book of Biology, Part 1: Vertebrata by H. G. (Herbert George) Wells
The blastosphere determines the orientation of the gastrula, and so forth.
From The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development by Oscar Hertwig
If we compare this with the typical blastosphere of the lower type, we see that it is, as it were, flattened out on the yolk.
From Text Book of Biology, Part 1: Vertebrata by H. G. (Herbert George) Wells
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