Relatively harmless ancestors gradually or step-by-step evolve into "pathogens;" the host develops adaptive defense mechanisms, which in turn select for new virus "variants;" eventually, equilibrium is reached between infection and host defenses.
We apply the lessons that we are gathering to our actions and step by step, we evolve each day into the best version of ourselves.
She does not see this in conspiratorial terms, but she has an explanation for the step-by-step way it evolved.
They consist of a two-dimensional array of cells that "evolve" step-by-step according to the state of neighbouring cells and certain rules that depend on the simulation.
An article in the Asian-Pacific Law & Policy Journal notes that precedents for this idea include the British Parliament, French Estates-General, U.S. Congress, and Europarl, which are all systems in which, over time, power shifted to directly elected officials: "In the past, fledgling democracy has always had to compromise with the realities of power and evolve step-by-step, where possible.
Irreducible complexity insists that some "adaptive packages" (to use the language of Pandas) are too complex to have evolved step-by-step by natural means.
The composition of the polyiodide complexes evolved upon a step-by-step annealing at temperatures from 100 °C to 300 °C while the work-function non-monotonically changed with decreasing iodine content.
The relative importance of these mechanisms is unclear, but genomic studies have shown that enzymes in a pathway are likely to have a shared ancestry, suggesting that many pathways have evolved in a step-by-step fashion with novel functions created from pre-existing steps in the pathway.
To our knowledge, only studies on the common shrew and the house mouse have met all these criteria, but chromosomal races within these mammals have essentially smaller differences in chromosome number and apparently evolved through a step-by-step accumulation of single chromosomal rearrangements [ 9- 13] rather than through wide intraspecific and intrapopulation chromosome number polymorphism.
Through interviews, they discovered that the customers preferred step-by-step directions, as opposed to a map, so their idea evolved accordingly.
