Natural Selection: Difference between revisions
From CasGroup
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
'''Natural selection''' is a process by which biological populations are altered over time, as a result of the propagation of heritable traits that affect the capacity of individual organisms to survive and reproduce. It leads to an [[Adaptation|adaptation]] and accommodation of a species to a certain ecological or economic niche. According to John H. Holland, natural selection can be considered as a selection of persistent combinations: "darwinian selection is, from one point of view, the selection of persistent combinations" [http://www.pbs.org/wgbh/nova/sciencenow/3410/03-ask.html] | '''Natural selection''' is a process by which the genotypes in a population that are best adapted to the environment increase in frequency relative to less well-adapted genotypes over a number of generations. It is a process by which biological populations are altered over time, as a result of the propagation of heritable traits that affect the capacity of individual organisms to survive and reproduce. It leads to an [[Adaptation|adaptation]] and accommodation of a species to a certain ecological or economic niche. According to John H. Holland, natural selection can be considered as a selection of persistent combinations: "darwinian selection is, from one point of view, the selection of persistent combinations" [http://www.pbs.org/wgbh/nova/sciencenow/3410/03-ask.html] | ||
see [http://en.wikipedia.org/wiki/Natural_selection Wikipedia Entry for Natural Selection] | see [http://en.wikipedia.org/wiki/Natural_selection Wikipedia Entry for Natural Selection] | ||
[[Category:Basic Principles]] [[Category:Evolutionary Principles]] | [[Category:Basic Principles]] [[Category:Evolutionary Principles]] | ||
Revision as of 07:21, 4 October 2008
Natural selection is a process by which the genotypes in a population that are best adapted to the environment increase in frequency relative to less well-adapted genotypes over a number of generations. It is a process by which biological populations are altered over time, as a result of the propagation of heritable traits that affect the capacity of individual organisms to survive and reproduce. It leads to an adaptation and accommodation of a species to a certain ecological or economic niche. According to John H. Holland, natural selection can be considered as a selection of persistent combinations: "darwinian selection is, from one point of view, the selection of persistent combinations" [1]