a species of bird lives in an area where large and small seeds are common, but medium size seeds are not. birds with large beaks are adept at eating large seeds and birds with small beaks are adept at eating small seeds. this population will likely undergo is Disruptive selection.
Destructive selection, also called diversification selection, describes changes in population genetics in which extreme values of a trait are favored over median values. In this case, the trait variance increases and the population splits into two different groups. This yields more individuals at both ends of the marginal characteristic values of the distribution curve .
Natural selection is known to be one of the most important biological processes behind evolution. There are many variations in traits, some with high and some with low reproductive success in individuals. The effect of selection is to encourage certain alleles, traits, and individuals that are more likely to survive and reproduce in a particular environment.
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