How To Use cenogenetic In A Sentence
- Cenogenetic processes, on the other hand, include such phenomena as the formation of yolk and the embryonic membranes, the temporary allantoic circulation, the navel, the curved and contracted shape of the embryo, and the like. Form and Function A Contribution to the History of Animal Morphology
- But in the monotremes the formation of the cenogenetic entoderm does not precede the invagination; hence in this case the construction of the germinal layers is less modified than in the other amniota. The Evolution of Man — Volume 1
- In these three classes alone we find the remarkable embryonic membrane, already mentioned, which we called the amnion; a cenogenetic adaptation that we may regard as a result of the sinking of the growing embryo into the yelk-sac. The Evolution of Man — Volume 2
- It was also shown that what is called delamination -- the rise of the two primary germinal layers by the folding of the surface of the blastoderm (for instance, in the Geryonidae and other medusae) -- was a secondary formation, due to cenogenetic variations from the original invagination of the blastula. The Evolution of Man — Volume 1