Unless a genomic functionality is actively protected by selection, it will accumulate deleterious mutations and will cease to be functional.
He has often been challenged by biologists and ethologists, notably Richard Dawkins, who are more impressed by selection's adaptiveness than its conservatism.
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ComScore evaluated purchase decisions amongst tablet purchasers and found iPad owners cared most about app selection and brand while Amazon Kindle owners cared most about price, followed by selection of apps.
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Semifinals: Coverage of two semifinals each year matching four seeded teams identified by a selection committee to be named by the commissioners.
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In summary, Dr Saetre and his colleagues have vindicated Dobzhansky and thus confirmed a mechanism for the origin of species that is directly caused by natural selection, rather than being an accidental by-product of it.
While everyone was ecstatic by the selection of Gillick, no one could hide their disappointment that Marvin Miller had once again been snubbed by the committee.
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But other phenomena that look like diseases are known to be maintained by natural selection.
In the event that a tie still exists, the Winner will be determined by random selection.
Second, there is talk that the 4 teams will be decided by a selection committee.
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Viruses have genes, can reproduce and are subject to the evolutionary pressures imposed by natural selection.
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Those mutations that make a difference to the operations of genes will be affected by natural selection.
The theory of evolution by natural selection states the "fittest" animals or plants are more likely to survive and reproduce.
Darwin said evolution occurred by natural selection where the "fittest" animals or plants were more likely to survive and reproduce.
Darwin's theory - of random mutation followed by natural selection according to environmental suitability - changed science, changed the world.
Articles specially commissioned by the Editorial Office are complemented by a selection of responses to an open call for papers.
Their sense of having been cheated may perhaps be muted by the selection of Miss Megawati as Mr Wahid's vice-president.
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Wallace, who was born in Monmouthshire and also lived in Neath, was the co-discoverer of the theory of evolution by natural selection.
Thousands of Wallace's letters have been put online for the first time, including correspondence with Darwin about evolution by natural selection.
By adverse selection the weakest, least mobile and least employable have remained.
If you're starting to feel dizzied by the selection, you're not alone.
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But Royal Mail said he did not fit the bill for the collection as a stand-up comedian and had been rejected by the selection panel.
Scientist Alfred Russel Wallace, who proposed the theory of evolution by natural selection with Charles Darwin, corresponded with the great and good of 19th Century society.
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On submitting the application form for travel grants, you agree to the full acceptance of the rules and to the decision taken by the Selection Committee.
In theory, if you did manage to trace how the brain was shaped by natural selection, you might shed some light on how the mind works.
Letters written by scientist Alfred Russel Wallace, who proposed the theory of evolution by natural selection with Charles Darwin, will be published online for the first time.
The states of the old Confederacy boast 10 of the top 12 places for locating new plants, according to a recent 2012 study by Site Selection magazine.
The first bagged salads in the United States were introduced in 1986 by Natural Selection Foods--the same company that has recalled its spinach--under its organic Earthbound Farm brand.
The president will be given recommendations by a selection panel of prominent officials, including the prime minister, that appoints a search committee to draw up a list of candidates.
These included well known naturalists such as Alfred Russel Wallace, who collected specimens in the Amazon and Malay Archipelago and independently formulated a theory of evolution by natural selection.
BBC: NEWS | Science/Nature | Darwin's letters archived on web
He reasoned that harmful mutations which have their effect before the menopause (or, in the more sophisticated version, before the last child has fled the nest) will be eliminated by natural selection.
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