BioScience Dictionary

 
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Found Natural selection 2 times.

Displaying results 1 to 10.

1. Natural selection
The differential survival and reproduction of organisms with genetic characteristics that enable them to better use environmental resources.

2. Natural selection
The process of differential survival and reproduction of fitter genotypes ; can be stabilizing , directional , or disruptive . Better adapted individuals are more likely to survive to reproductive age and thus leave more offspring and make a larger contribution to the gene pool than do less fit individuals. The differential survival and reproductive successes of individuals in a variable population that powers the evolutionary process. When all individuals survive and reproduce (except for chance occurrences) natural selection works at a lower rate, if at all.