blastosphere
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.
A limit is set to increase in the size of a blastosphere by the nature of the material of its walls.
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
We naturally assume, from what we have learnt, that the next stages will be the formation of a hollow blastosphere, invagination, a gastrula forming mesoblast by hollow outgrowths from the archenteron, and so on.
From Text Book of Biology, Part 1: Vertebrata by H. G. (Herbert George) Wells
The earliest one-celled protozoa were probably succeeded by many- celled animals of the type of the blastosphere, and these by gastrula-like organisms.
From The Elements of Geology by William Harmon Norton
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 H. G. (Herbert George) Wells
