EVOLUTION
PATTERNS OF EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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pattern of evolution that involves periods of relatively little or no change followed by periods of drastic rapid change
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pattern of evolution that involves slow, steady, and small changes over time
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pattern of evolution that involves periods of relatively medium change followed by more gradual chance
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pattern of evolution that involves all very quick changes and species evolve in one generation
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Detailed explanation-1: -The theory of punctuated equilibrium states that evolutionary change is characterised by short periods of rapid evolution followed by longer periods of stasis in which no change occurs. Despite years of work seeking evidence for punctuational change in the fossil record, the theory remains contentious.
Detailed explanation-2: -“Punctuated equilibrium is the idea that evolution occurs in spurts instead of following the slow, but steady path that Darwin suggested. Long periods of stasis with little activity in terms of extinctions or emergence of new species are interrupted by intermittent bursts of activity.”
Detailed explanation-3: -Punctuated equilibrium is a pattern of evolution in which long stable periods are interrupted by brief periods of more rapid change.
Detailed explanation-4: -The concept of punctuated equilibrium was, to some, a radical new idea when it was first proposed by Stephen Jay Gould and Niles Eldredge in 1972. Now it is widely recognized as a useful model for one kind of evolutionary change.