What is speciation?Explain in brief the role of natural selection and genetic drift in this process.
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Answer:
Speciation can be driven by evolution, which is a process that results in the accumulation of many small genetic changes called mutations in a population over a long period of time. ... Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation
The origin of new species from pre-existing ones is called speciation.
the role of natural selection and genetic drift in speciation:-
Genetic drift is flow of genes from one population to another by chance factor or randomly. Over generation, it will accumulate different changes in different population.
In addition, natural selection operates differently in different population selecting the favorable feature in both the population.
Over a long period of time, the differences in the two population may become so drastic that they no longer reproduce with each other and thus give rise to new species.