Sentence examples for by differences in life from inspiring English sources
The table is not exhaustive and interspecies comparisons are complicated by differences in life histories, colony structure and degree of reproductive conflict among colony members.
The gender distribution reflects the considerably higher proportion of women (N = 560, 70.7%, mean age 84.7 years) among the older population caused by differences in life expectancy (men: N = 232, 29.3%, mean age 79.3 years).
Some variation across species appears to be caused by differences in life histories (Kolm et al. 2006), especially the degree to which paternal care is crucial for successful reproduction (Barlow 1974; Kleiman 1977; Weatherhead 1990).
Radical treatments were less likely in the older population and men from deprived areas and may be explained by differences in life expectancy, with both these groups having shorter life expectancy (Bajekal, 2005).
ITS1 and ITS2 sequences were obtained from GenBank under strict sampling criteria designed to control for artifacts contributing additional variation in divergence rates that could obscure any rate variation caused by differences in life history.
The differences in immune function and resistance between the sexes can be explained by differences in life-history, males increase their fitness by increasing their mating rate while females increase their fitness by longevity [ 29, 43- 45].
We calculated an incremental cost-effectiveness ratio (ICER) for each strategy compared to its next less expensive alternative: difference in lifetime costs divided by difference in life-years ($/YLS).
These species are also separated by differences in morphology, life history and habitat preference, and show poor pollen viability in hybrid offspring [ 17- 19].
Given that most of the analyzed genes encode proteins involved in universal cellular functions, such as translation, it seems unlikely that the variations are directly and primarily caused by differences in the life styles of the respective organisms.
Considering the highly stage-specific expression pattern of genes encoding exported proteins [ 2, 20], we wanted to determine whether the apparent variant expression pattern across patients' co-expression might be driven by differences in parasite life cycle stages between samples.
Because rate heterogeneity at nrDNA sequences may have multiple causes, we established three criteria designed to control for artifacts possibly contributing to rate heterogeneity that may obscure any rate variation caused by differences in annual/perennial life history.
