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selection pressure

   Also found in: Wikipedia 0.02 sec.
selection pressure [si′lek·shən ‚presh·ər]
(evolution)
Those factors that influence the direction of natural selection.


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Urban noise, which is louder at lower frequencies increased during our study period, and therefore it should have created a selection pressure for songs with higher frequency," ABC Online quoted the study, as saying.
Even if bureaucrats did not initially provide funding to academics with the intention of receiving theoretical protection from the academics, the selection pressure causes the practice to become agency protective.
But these robust selection pressures for intelligence also inflicted the Ashkenazis with lamentable side effects.
 
 
 
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