Out of the two sources of variation it would seem that the epigenetic variation would make the more important contribution to a new species or the evolution of a new phenotypic feature, this by virtue of the non-gradual element inherent in this process.
From Fig. 12, it was observed that the sample had a gradual degradation of element degradation.
The 3 mm width edge region has gradual change of element contents, microstructure and Vickers hardness.
Third, it might be argued that simple stochastic variation in the rate of base substitutions in LTRs can lead to a gradual decline in element numbers (on the timescale of sequence divergence) to the right of an age distribution peak, yielding a false impression of an earlier steady-state birth death process.
If there has been a gradual production of heavy elements, recently formed stars should contain more than old stars.
Thus, the gradual production of heavy elements by nuclear fusion reactions is balanced by disintegrations, and the buildup process effectively ceases once the material is predominantly in the form of iron and its neighbouring elements of the periodic table.
The third period, the Archaic, from about 650 to about 480 bc, is characterized by the gradual absorption of Oriental elements and the rise and development of archaic Greek art.
The song comes together with the gradual addition of new elements: that ghostly organ, a lone, quiet bass guitar, a Greek chorus of oohs echoing in the background as if to confirm that everything happened just as our narrator said it did.
Results showed a gradual increase of chemical elements concentrations in groundwater wells nearer the landfill site.
Moreover, I present the mechanism that represses such a major inclusion of Alu exons and instead enables a gradual evolution of Alu elements into new exons.
EDX spectra confirm the presence of expected constituent elements with the gradual increase in TiKα peak (of the TiC thin film) relative to FeKα peak (of the substrate) with increasing numbers of focus deposition shots due to increasing film thickness.
