Question

what is the significane of variation

Answer 1

When selection was detected, primarily for body size, it favored larger individuals. Such inconsistency in the strength and shape of selection over time likely maintains important variation within the population overall and suggests that there is no clear best-adapted morphology in this dynamic habitat.Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. ... Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.