The evolution of populations is a very complex process. Although individuals are selected by nature, they are unable to evolve during their lifetimes; Instead only populations are able to evolve once certain heritable variations become more common. In his book The Origin of Species, Charles Darwin presented his theories about evolution and natural selection. Although his theory on evolution became excepted, Darwin was unable to convince people about natural selection. He lacked the genetic information …showed first 75 words of 362 total…

…showed last 75 words of 362 total…pool will be fixed. Another way is when a population is isolated. This forces a species to inbreed or become extinct. The inbreeding will cause certain genes to become more fre! quent and others to become less dominant. So, based on these two examples, you can see if an individual has their chances of acquiring a trait increased, or if the gene pool becomes fixed, then the population is said to of evolved. ------------------------------------------------------------------------ **Bibliography**