The accessibility of a certain place can evolve either as the direct result of transport changes or as a consequence of the spatial redistribution of economic activities.
Host suicide can potentially evolve either as an immediate response to infection or as a means of last resort after immunity mechanisms fail to stop pathogen reproduction [ 12].
The role of denosumab in prostate cancer will continue to evolve either as monotherapy or in combination with other bone-targeting strategies.
At the broadest level, resistance can evolve either as a result of chromosomal mutation or via the acquisition of a mobile genetic element (MGE) (Levy and Marshall 2004; Alekshun and Levy 2007).
It may also indicate that a novel RNA-based regulatory pathway evolved either within the ctenophore lineage or as a precursor to the canonical miRNA pathway recognizable in the rest of the Metazoa.
In other areas, new styles either began or reached their climactic development, such as the Mixteca Puebla style in painting, ceramics, and metallurgy, which evolved either in western Oaxaca or, more probably, at Cholula in Puebla.
The greater strength of different types of splicing signals around longer introns could evolve either via a neutral evolution route or as an adaptation.
This is intriguing and may have evolved as either a cause or a consequence of their extracellular lifestyles on their hosts.
Using anaerobic digester sludge, Steber and Wierich (1987) found that after four weeks of incubation, >80% of the initial radioactivity in C13EO8 evolved as either CH4 or CO2 gas, and another 10% was assimilated into the sludge biomass.
Therefore, green algae surviving in these environments must have evolved with either avoidance or protective strategies, as well as repair mechanisms for damage.
