Question

how does each natural selection and genetic drift help speciation

Answer 1

Speciation is defined as an evolutionary process wherein a new species comes into being. It can be driven by evolution, which results in the accumulation of many genetic changes known as mutations in a population over a long period of time. One of the mechanisms to drive speciation is natural selection, which can result in organisms that are more likely to survive and reproduce and may eventually lead to the formation of new species. A second process known as genetic drift accounts for random fluctuations in allele frequencies in populations, which can consequently cause a population of organisms to be genetically distinct from its original population and result in the formation of a new species.