Convergent evolution - Populations of different species adapt to similar selection pressures and become more similar., Species concept - Definition used to try to define a population that can breed/are similar. Always flawed. , Adaptive radiation - Rapid divergence of a single species to new ecological niches (think Darwin!), Variation - Must already exist in a population for natural selection to be possible., Barrier - Something preventing two populations from interbreeding., Punctuated equilibrium - Sudden changes to the environment lead to sudden selection pressure and rapid changes in the gene pool., Gradualism - Gradual changes in the gene pool as a result of mild selection pressure over a long time., Transient - Industrial melanism is an example of what type of polymorphism?, Allopatric - Speciation occurring in two distinct geographical areas (due to isolation).,

Selection & Speciation

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