Sentence examples for development of primitive from inspiring English sources

Studies of the embryonic development of primitive vertebrates, such as the dogfish shark, clearly show that the excretory system arises from a series of tubules, one pair in every segment of the body between the heart and the tail.

Commentators argue that a half a century later James Frazer's The Golden Bough accomplished what Casaubon aims at, a comparative-evolutionary account of the development of "primitive" magic and religion.

He added that he loved the focus on exploration in Star Trek and the idea of the Prime Directive, which forbids Starfleet to interfere in the development of primitive worlds, but that, because of the budgetary limitations of the original show, it had "never had the resources to actually show the adventure".

Moreover, a progenitor cell population showing hemangioblast characteristics that appears prior to the development of primitive and definitive hematopoietic progenitor cell populations, has been identified in the ES system as well as in the embryo [11], [12].

Although definitive hematopoiesis has been extensively studied, the development of primitive myeloid blood has received far less attention.

Comparatively, little is known about the mechanisms and gene networks responsible for the development of primitive macrophages and neutrophils.

This group of integral membrane proteins is unique to plants and dates back to the first development phase of primitive land plants, suggesting a stable role during their evolution [ 24].

Since GT4 and GT28 families, and perhaps all glycosyltransferases have evolved from a common ancestor involved in the cell wall synthesis of the primitive organism [ 36] further development of this primitive organism would have depended on the evolution of cell wall biogenesis enzymes.

It is often assumed that the first cells appeared only after the development of a primitive form of protein synthesis.

The Yao peoples and others on the empire's frontier were incorporated into a feudal system, or fengjian shehui, which Ralph A. Litzinger says bypassed any possible native development of a primitive slave society, or nuli shehui, since the Yao and others lacked a sedentary tradition.

Estradiol alone or together with other substances may be involved in development of these primitive oocyte-like cells.