Question

During normal climatic conditions with regular rainfall, the average beak depth for a population of finches was 6.8mm. researchers found that after a drought, average beak depth increased to 8.8mm. birds with deep beaks (>9mm) were better able to eat large, hard seeds. small hard seeds were also available after the drought, but could only be eaten by birds with shallow beaks (<7mm). choose the graphical representation and term that best represents what would happen in the post-drought finch population if both types of seeds continue to be available.

Answer 1

The given case is an example of disruptive selection.

The disruptive selection, also known as diversifying selection, illustrates modifications in population genetics in which extreme values for a trait are preferred over transitional values. In this situation, the variance of the trait upsurges and the population is differentiated into two different groups.