Question

Biological evolution differs from chemical evolution in that it would have been possible only after the development of

Answer 1

Evolution is change in the heritablecharacteristics of biological populations over successive generations.[1][2] These characteristics are the expressions of genesthat are passed on from parent to offspring during reproduction. Different characteristics tend to exist within any given population as a result of mutation, genetic recombination and other sources of genetic variation.[3] Evolution occurs when evolutionary processes such as natural selection (including sexual selection) and genetic drift act on this variation, resulting in certain characteristics becoming more common or rare within a population.[4] It is this process of evolution that has given rise to biodiversity at every level of biological organisation, including the levels of species, individual organisms and molecules.