Natural selection is the nonrandom process by which biological traits become either more or less common in a population as a function of differemtial reproduction of their bearers. One of the main processes by which natural selection takes place is the competition over resources. The larger the population in a certain area, the more competition takes place. In the long run, it doesn't matter wheather or not the area is overpopulated; within any and every population, competition over resources takes places, so, in turn, natural selection does, too.
The numbers of birds with different beak shapes are changed by natural selection in response to the available food suply.
In all natural processes, there is an element of chance. In natural selection, most of that chance is introduced by the randomness of the genetic variations it works with. But other elements of chance exist as well. Natural selection is a stochastic phenomenon: not every less able variant will produce less offspring than the more able variant; much depends on chance environmental circumstances.
Its NaTuRaL sElEcTiOn if you didn't know.
Yes it does. For example, "She pioneered the student graduate scheme" or "Charles Darwin pioneered the natural selection theory of evolution"
Adaptation does not allow for natural selection: natural selection causes adaptation.
Its a chicken and egg situation. Adaptation is the response to Natural Selection, and Natural Selection is the response to Adaptation. They both operate by the principle: the members of any species that are best adapted to their environment are the ones most likely to survive and reproduce the next generation, where the process repeats. That does not mean the strongest or most aggressive, they often get themselves killed off.
The prefix of natural selection is "natural" and the suffix is "-tion".
Genetic variation in itself does not 'support' natural selection: it is what natural selection acts upon.
Natural Selection
Natural selection.
Natural selection
That selection was natural.