because each person is different and so the genes make up new people each time creating better equipped humans to develop to the environment but only very slightly because everybody is different.
A variation of a gene is called and allele. Different alleles are caused by mutations.
In process control.
Heritable variation refers to differences in traits among individuals that are passed down from one generation to the next through genetic inheritance. These variations are the result of differences in DNA sequences and can be influenced by factors such as mutations, recombination, and gene flow. Heritable variation is essential for natural selection to act upon, leading to evolution within a population.
Variation refers to the differences or changes observed within a group of individuals, such as variations in traits, characteristics, or behaviors. It can be caused by genetic factors, environmental influences, or a combination of both. Variation is essential for evolution and the adaptation of species to changing environments.
Variation refers to differences or diversity among individuals within a population, species, or group. It can be caused by genetic, environmental, or developmental factors and plays a significant role in adaptation, evolution, and natural selection.
If the process is in control, then the variation is termed common cause or what you have stated as natural variation.
sexual reproduction
it is caused when the variation is hit on the guitar
The point of Evolution is that it doesn't start or stop at any given point. It's a natural process that happens throughout life. Evolution is caused by triggers in genes. Different animals have different triggers. These triggers can be caused by different things, but most commenly a change in habitat.
Genotypic variation is caused by mutation. Phenotypic variation can be caused by mutation, which gives rise to different alleles, or it can be caused by environmental factors.
For one, without genetic variation, a species is more likely to face significant danger from disease. In humans there are some diseases that affect a few races more than others, but because of genetic variations, our species as a whole is more likely to adapt to new diseases and survive rather than if everybody had the same predisposition toward a disease.
You can believe evolution was caused by God and he controls it.