In addition, while experimental populations experience selective pressures that are usually low in number but high in intensity, natural populations encounter many selective pressures imposed by physical (e.g., temperature), chemical (e.g., pH), and biological (e.g., phages and other microbial organisms) variables, which differ in intensity and vary over time.
The finding that Glomus intraradices individuals do not share the same copy number for genes of potentially ecological importance is interesting, suggesting a possible variation in the adaptation of these organisms to variable environments and could explain, in part, the intra-specific phenotypic variability recorded by others [ 23].
Several experiments studied the impact of Bt-crop plant material on soil organisms with variable results ranging from some effects to transient effects to no effects [43, 44].
The effects of elevated CO2 on marine organisms are variable and species-specific but can also have cascading effects on communities and ecosystems, with marine benthic communities at some natural analogue sites (e.g. volcanic vents) showing decreased diversity, biomass, and trophic complexity.
Functional interaction among multiple inducible traits may turn out to be the prevalent design in organisms inhabiting variable selective environments.
The exact prevalence of MDR organisms is variable between institutions and also within institutions [ 1].
We find that metabolic networks of organisms in variable environments are significantly more modular than networks of organisms that evolved under more constant conditions.
Within the expanded mucosa, and particularly within the lamina propria mucosae, multiple spherical to polygonal organisms of variable appearance, consistent with R. seeberi, were seen (6 ).
The TE content of different organisms is variable, sometimes accounting for as much as 60 80% of the genome, as in the case of cereals.
The susceptibility and resistance of MCF-7 cells to different extracts vary as the compound(s) present in all the marine organisms have variable polarity and extractability [ 27].
Toxicity of surfactants, when tested on different aquatic organisms show variable LC50 values depending on the sensitivity of the test species [ 88, 94, 101].
