Answer:
Genetic drift
Explanation:
Genetic drift is defined as the random change in allelic frequencies from one generation to the other.
Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population, meaning that this effect is inversely proportional to the population size. Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to <u>randomly</u> fixate one of the alleles. Low-frequency alleles are the most likely to be lost. Genetic drift results in a loss of genetic variability within a population.
Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.
Tracheoesophageal fistula
Tracheoesophageal fistula (TE) is
a condition in which an abnormal channel (fistula) connects the trachea to the
oesophagus. It is a birth defect and is characterized by extensive salivation
with choking, vomiting and cyanosis during feeding. When eating, food
substances move through abnormal connection and this can cause other illnesses.
From the question given above, Morgan is likely have tracheoesophageal fistula.
Answer: because the interactions between these organisms enable the cyclic flow of energy and nutrients in the ecosystem.
Explanation:
Since the means of reproduction have changed, the population of peacocks would probably start losing their pretty feather colors due to the fact that over time females would be mating with the containing the other trait (and possibly not the pretty feathers). This would then produce offspring with ugly colors but also with the desired trait. This would continue on and on until those with the desired trait outnumbered or possibly extinguished the now unnecessary vibrant feather colors.
