Natural selection 'weeds out' defective genes through successive generations - this both enhances a species chances of survival, and reduces variations in the species genetic make-up.
Natural selection doesn't reduce variation. Variation is regulated by the rate of mutation.Natural selection reduces the chance of bad variation from being passed on and increases the chances for good variation to be passed on.
Mutations are important for evolution because they provide the variability whereupon natural selection acts.true last answered by zaporia
Because there is variation within a species, it is therefore possible for the law of natural selection to operate, by selecting those variations which best enhance survival and reproduction.
species
Natural selection, which is the mechanism for evolution.
yes.
We call this speciation, and is largely driven by evolution and natural selection.
Natural selection helps to increase biodiversity and the number of new species.
Natural variation in artificial selection is used because humans choose from among the naturally occurring variation s in species. Natural selection is related to species fitness because Darwin called natural selection survival of the fittest because those that could survive would carry their species on there for being the naturally selected.
While living organisms tend to overprodue, the population still remains stable over time and across generations. therefore, there is competition, and success in competition is due to variability. Competition and variability together function to select the most adaptive characteristic, giving us natural selection
The book "On the Origin of Species by Means of Natural Selection" was written by Charles Darwin.
have chromosomes.