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punctuated equilibrium

The idea that speciation occurs in spurts followed by long periods of little change

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โˆ™ 2010-07-28 18:07:38
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Q: What is the idea that speciation occurs in bursts between long periods of genetic equilibrium is call?
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The idea that speciation occurs in bursts between long periods of genetic equilibrium is called?

Punctuated equilibrium.


What is punctuated equilibrium?

The theory that speciation occurs in spurts of major genetic alterations that punctuate long periods of little change.


The hypothesis that speciation occurs quickly in rapid bursts with long periods of stability in between is called?

Punctuated equilibrium.


What is the explanation for the pattern known as punctuated equilibrium?

Punctuated equilibrium predicts that a lot of evolutionary change takes place in short periods of time tied to speciation events.


Punctuated equilibrium interprets speciation as occurring how?

Rapidly in the development of new,beneficial traits, followed by very long periods of little change


Quick bursts of change with long periods of stability in between is called?

Punctuated equilibrium.


Why did speciation rates increase at the Triassic-Jurassic periods?

Because trees died.


How is speciation and reproductive isolation related?

Reproductive isolation is a type of speciation. Reproductive isolation is when a species divides forming two subspecies, due to different mating periods.


How does punctuated equilibrium happen?

evolutionary tempo characterized by isolated episodes of rapid change between long periods of little or no change.


What is the difference between gradualism and punctuated equilibria?

Answer 1Gradualism usually refers to the discarded notion that evolution occurs at a steady, mostly unvarying rate, and that speciation is a process that takes many millions of generations.Punctuated equilibrium, on the other hand, proposes that evolution occurs at varying rates: species can exist superficially unchanged for many thousands or millions of years, but then speciate and diverge rapidly, sometimes in the span of less than ten thousand generations.One should not confuse punctuated equilibrium with saltationism, however: in both gradualism and punctuated equilibrium, evolution and speciation are gradual processes that take many generations to manifest.Answer 2Gradualism basically says there is slow change over long periods of time. This was the origional theory of evolution that has since been replaced with punctuated equilibriaPunctuated Equilibria is the theory that there are long periods of no change broken up (or punctuated by) geologically short periods of rapid change. This theory is better supported by the fossil record.Gradualism is when something happens... well, gradually. Punctuated equilibrium is when something doesn't change over a long period of time then suddenly changes. (Not meaning that punctuated equilibrium is that you see your cat one day, you go to sleep and then the next day your cat has grown fangs). Equilibrium basically means calm, and punctuated means that it's broken. So the calm, unchanging evolution is broken.gradualism: roughly constant gradual change over all time.punctuated equilibrium: long periods of time with little or no change, separated by short periods of time of large dramatic changes.


What is the hypothesis that evolution occurs with periods of drastic change folled by periods of very little change?

punctuated equilibrium


The pattern of long stable periods interrupted by brief periods of more rapid change is known as?

Puctuated equilibrium

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