Answer :

Yes, the frequency of sapphire feathers decreased with successive generations (Option Yes)

The decrease in the frequency of sapphire feathers across successive generations can be attributed to natural selection. In each generation, individuals with traits that confer advantages in their environment are more likely to survive and reproduce, passing on these advantageous traits to their offspring. If sapphire feathers do not provide any survival or reproductive advantage, individuals with other, more advantageous traits will be favored by natural selection over time, leading to a decrease in the frequency of sapphire feathers in the population.

Additionally, genetic drift may also contribute to the decrease in the frequency of sapphire feathers. Genetic drift refers to random fluctuations in allele frequencies within a population due to chance events. In small populations, genetic drift can have a significant impact on allele frequencies, leading to the loss of rare alleles such as those responsible for sapphire feathers. Over successive generations, genetic drift may cause the frequency of sapphire feathers to decline even further, especially if the initial frequency was low.

Furthermore, environmental factors may also play a role in shaping the frequency of sapphire feathers. Changes in habitat, climate, or food availability could alter the selective pressures acting on the population, favoring individuals with different traits. If sapphire feathers are no longer adaptive in the altered environment, individuals with other traits may be favored, leading to a decrease in the frequency of sapphire feathers over time. Thus, a combination of natural selection, genetic drift, and environmental factors likely contributed to the observed decrease in the frequency of sapphire feathers across successive generations.

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