Individuals die. Only the progeny of individuals carry on the genetic variation that is in populations. Selection works on this variation in populations by working on variation passed along by the sex cells. Somatic cells of the individual can have any mutation, but can not pass it on to progeny. Sex cell, having mutation which allow selection to choose among variation, lead to evolutionary processes.
An individual can evolve in a way - in their thinking or way of looking at life. The other kind of evolution in a physical sense, takes many generations for even a tiny change to happen.
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Because individual die and all changes to their somatic genomes die with them. Only mutations, or regular recombination events, in the germ line can be passed on to progeny which can then change the allele frequency in the populations gene pool.
Evolution is the change in allele frequency over time in a population of organisms.
mewtwo cannot evolve legandaries cannot evolve
Victini does NOT evolve in Pokemon Black or White.
You cannot get Phione to evolve, it cannot evolve into any Pokémon.
Nothing because it cannot evolve.
Fearow does not evolve. Spearow, however, evoles into Fearow.
I did not evolve from anything! Individuals are naturally selected and populations evolve. Understanding this simple fact can explain certain things that creationists do not seem to understand. Such questions as, " where did the first man find the first woman? " When you understand that populations evolve and individuals are selected then you will see that questions as the one you asked and questions as the one I used as an example are just silly.
mewtwo cannot evolve legandaries cannot evolve
Populations evolve, individuals are selected.
Evolution is defined as a change in allele frequencies over time. Since individuals have only the set of alleles that they're born with, an individual cannot evolve. This leaves the population as the smallest unit that can evolve.
roserade cannot evolve but you can evolve Roselia with a shiny stone into roserade and you can evolve budew into Roselia with friendship but roserade cannot evolve
Mewtwo cannot evolve.
You cannot evolve Leafeon.
Sunflora cannot evolve.
Arbok cannot evolve
Togekiss cannot evolve
Dewgong cannot not evolve.
Magcargo cannot evolve