.Species A and Species B were formed by the process of speciation. The diagram shows how the gene pools of Species A and Species B changed over time.Which type of ecological interaction is most likely responsible for the increasing difference between the gene pools?A.predation of Species A by Species BB.competition for scarce resources by individuals in Species A and BC.parasitism of Species B by Species AD.mutualism between Species A and Species B
Question
.Species A and Species B were formed by the process of speciation. The diagram shows how the gene pools of Species A and Species B changed over time.Which type of ecological interaction is most likely responsible for the increasing difference between the gene pools?A.predation of Species A by Species BB.competition for scarce resources by individuals in Species A and BC.parasitism of Species B by Species AD.mutualism between Species A and Species B
Solution
The most likely ecological interaction responsible for the increasing difference between the gene pools of Species A and Species B is B. competition for scarce resources by individuals in Species A and B.
Here's why:
Speciation, the formation of new and distinct species in the course of evolution, often occurs due to some form of reproductive isolation which prevents different species from interbreeding. This isolation can be a result of various mechanisms, one of which is competition for resources.
In a situation where two species are competing for the same resources, natural selection will favor traits that reduce competition. Over time, this can lead to changes in the gene pools of the two species, causing them to diverge more and more. This process is known as competitive exclusion or Gause's law.
The other options (predation, parasitism, and mutualism) can also lead to changes in gene pools, but they are less likely to cause a steady increase in the difference between the gene pools of two species. Predation and parasitism often lead to cyclical changes, while mutualism usually leads to convergence rather than divergence.
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