Biology · Evolutionary Biology
Gradualism and punctuated equilibrium represent contrasting models of evolutionary change. Which one of the following options best describes these two models?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Gradualism emphasizes that evolution occurs through long periods of stasis interrupted by sudden, large-scale mutations, while punctuated equilibrium proposes continuous, slow change within species.
- 2Gradualism and punctuated equilibrium both deny the role of natural selection in shaping evolutionary change.
- 3Gradualism proposes that evolution proceeds through the steady accumulation of small changes, whereas punctuated equilibrium suggests long periods of evolutionary stability marked by relatively rapid bursts of speciation.✓
- 4Both models reject the importance of the fossil record in understanding macroevolutionary patterns.
Correct answer
Gradualism proposes that evolution proceeds through the steady accumulation of small changes, whereas punctuated equilibrium suggests long periods of evolutionary stability marked by relatively rapid bursts of speciation.
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