[37] Which of the following best summarizes the theory of punctuated equilibrium?
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[A] After periods of directional selection, the allelic frequencies in a population will reach equilibrium and then undergo disruptive selection.
[B] Most species evolve gradually, with discrete changes appearing in the fossil record at short, regular intervals.
[C] Once one species achieves evolutionary dominance, all of the remaining species must compete among themselves for selective advantages; only then will the dominant species be challenged.
[D] To ensure survival of the fittest, natural selection eliminates those species that disrupt the balance of nature.
[E] Most taxa experience relatively short periods during which they undergo rapid change, followed by relatively long periods during which they undergo relatively little change.