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Phyletic Gradualism and Punctuated Equilibrium

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I need about 3 pages to:
Explain the concepts of phyletic gradualism and punctuated equilibrium.
What are some presumptions about fossil records related to PE?
What are some events that facilitate rapid evolution?
Evidence that supports the long history of life on this planet.
What evidence do we have today that supports evolution by gradual change?
What evidence do we have today that supports punctuated equilibrium?

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Explain the concepts of phyletic gradualism and punctuated equilibrium

Phyletic gradualism was proposed by Charles Darwin and includes the concept of Natural Selection. As the name phyletic gradualism implies, natural selection gradually changes various attributes of a species by favoring more fit individuals who breed more and perpetuate the genes that support the survival of the species. Consequently, less fit individuals are removed from the breeding stock of the species. Evolutionary changes are continually occurring, and the traits which either increase the survival of the species or are not detrimental will persist in the population over time.

Punctuated equilibrium models species evolution in a different manner. Species undergo very little evolution for extended periods before evolving rapidly over a shorter period. ...

Solution Summary

The Phyletic gradualism and punctuated equilibrium is examined.

See Also This Related BrainMass Solution

Summarize punctuated equilibrium.

What predictions about the fossil record does punctuated equilibrium make? In this model, what are the processes that produce rapid evolution? Which evolutionary factors are responsible for the periods of relative stasis? Patterns of punctuated equilibrium have been observed in some cases, but the debate between punctuated equilibrium and phyletic gradualism continues and provides interesting areas of research. Based on your research into the scientific process, what evidence do we see today that supports a long history of life on the planet? What evidence do we see that supports the concept of punctuated equilibrium?

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