Sentence examples for timeframe natural from inspiring English sources
Regardless of lineage, environmental context, or timeframe, natural selection is considered by biologists to be the major (but not exclusive) driving mechanism of evolutionary change.
Island time allows things to happen in a natural timeframe; even if something doesn't get done today there's always mañana (tomorrow, later...).
This phylogenetic framework facilitates the study of gene expression from co-resident genomes on two temporal scales, from the onset of hybridization to a longer-term evolutionary timeframe encompassed by the natural allotetraploid species.
It should be noted that this is of course only a five-year forecast so it's within the timeframe which is still dominated by natural internal variability.
To assess the sensitivity of the results to this assumption, we also assumed, in the sensitivity analysis, a treatment timeframe of 1 year followed by natural decline in BCVA without treatment.
These natural phenomena happen on a timeframe of decades, not centuries.
Any study designed to determine genomic "signatures" of deliberate enhancement or selection is likely to require an analysis of the baseline likelihood that mutations conferring a similar phenotype would emerge and become fixed by natural processes within an evolutionary timeframe consistent with a known time interval or number of passages.
** Internet questionnaires will be completed by participants in Groups 2 6 and the natural history study on this timeframe.
Amphibian radiations and their secondary contact zones are useful models to infer the timeframes of speciation, but empirical data from natural systems remains extremely scarce.
We also identified two instances where the actual evolutionary path is unclear due to a lack of natural sequence data from the relevant timeframe: N334H/L259S, and E375G/R384G.
For example, any epidemics or natural disasters that occurred within the timeframe and location of a large-scale CE, regardless of the number of deaths (e.g. the 2004 Asian tsunami was considered to be linked with a CE because affected areas included CEs in Sri Lanka, Somalia and Indonesia) were included.
