Describe speciation and how species are reproductively isolated.
Ans) The formation of new species by the accumulation of changes due to much reduced gene flow when the species are geographically separated as a result of which the species starts adapting to different geographical niche and as time passes they start to diverge from one another and thus they are reproductively isolated and ultimately form new species which is known as speciation. If the species can still reproduce and form fertile offspring,this suggests that speciation has not occurred.
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