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.
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
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 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
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
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 John Mason Tyler
