blastosphere
Example Sentences
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Both the blastosphere and gastrula often swim freely by flagella.
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 Tyler, John Mason
The blastosphere of the frog is like what the blastosphere of amphioxus would be, if the future hypoblast cells were enormously larger through their protoplasm being diluted with yolk.
From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)
Invagination, the infolding of a layer of cells, as, for instance, in the transformation of a blastosphere into a gastrula, xvii.
From The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development by Hertwig, Oscar
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 Tyler, John Mason
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
