Apopulation of pigs lives on an island together with burrowing termites pigs that have the longest snouts tend to survive better over time most of the pig population is made up of individuation is made up of individuals that have very long snouts this is an example of which type of selection

The correct answer is the directional selection.  

Directional selection in population genetics refers to a method of natural selection in which an extreme phenotype is preferred over other phenotypes, making the allele frequency to curve with time towards the direction of that phenotype.  

Under directional selection, the beneficial allele enhances as an outcome of the distinctions in the reproduction and survival between the different phenotypes. The upsurges are not dependent upon the dominance of the allele, and even if the allele is recessive, it will ultimately become fixed.  

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