Difference between revisions of "Biological evolution"

Revision as of 01:46, January 11, 2011

Biological evolution is "a process that results in heritable changes in a population spread over many generations." [1]}}

Microevolution occurs in terms of biological evolution, but macroevolution does not.

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 '''Biological evolution''' is "a process that results in [[heritable]] changes in a [[population]] spread over many [[generations]]." [http://www.talkorigins.org/faqs/evolution-definition.html]}}
-Textbook author [[Douglas J. Futuyma]] wrote:
+[[Microevolution]] occurs in terms of biological evolution, but [[macroevolution]] does not.
-:Biological [[evolution]] ... is change in the properties of populations of organisms that transcend the lifetime of a single individual. The ontogeny of an individual is not considered evolution; individual organisms do not evolve. The changes in populations that are considered evolutionary are those that are inheritable via the genetic material from one generation to the next. Biological evolution may be slight or substantial; it embraces everything from slight changes in the proportion of different alleles within a population (such as those determining blood types) to the successive alterations that led from the earliest protoorganism to snails, bees, giraffes, and dandelions." - ''Evolutionary Biology'', Sinauer Associates (1986)  [http://www.talkorigins.org/faqs/evolution-definition.html]
 [[Category:Evolution]]