Sentence examples for Secondary origins from inspiring English sources

2) The secondary origins of the perisperm and antiraphal vascular bundle.

IPA is clinically classified into primary and secondary origins according to its initial infection site.

These data agree with the primary and secondary origins of expansion proposed on phylogenetic grounds, weakening the possibility that Basques would have obtain their total U8a diversity through recent immigrations from other European areas and reinforcing the hypothesis that the first U8a radiation in Europe happened in an area in which the Basque country was included.

Such waves are greatly amplified when IG waves from a distant typhoon are incoming to the trough, suggesting the secondary origin of IG waves that can emit even more energetic waves than the originally incoming waves.

Twinning is very common and may be of secondary origin in crystalline limestones.

It is of secondary origin, having been formed by alteration of primary uranium-vanadium minerals.

In significant deposits it is of secondary origin, but small-scale hydrothermal sources are known.

The origin of this chert is somewhat uncertain, but it appears to reflect either primary or secondary origin.

Evidence of secondary origin includes relict structures of allochems such as skeletal fragments and oöids preserved entirely within chert nodules.

We describe constraints on the source energy spectrum of electrons, which appears to have the same shape as that of nuclear cosmic rays, and we discuss the evidence that positrons are predominantly if not exclusively of interstellar secondary origin.

Like the epidermis, the periderm is a protective tissue on the periphery of the plant body; however, because the periderm is produced by a lateral meristem, it is considered to be of secondary origin (in contrast to the primary origin of the epidermis from the protoderm).