Indicate the scenario(s)that could directly result in sympatric speciation.Check all that apply.
A)Two sunflower species cross to form a healthy hybrid individual with equal copies of chromosomes from each parental species.
B)A new river channel divides a population of beetles into two populations.
C)A large fence blocks the intermingling of two populations of a species.
D)A subset of flies within a larger population colonizes a new host plant.

Question

Quizplus · Accepted Answer

A) Hybridization between two species can lead to the formation of a new species if the hybrid is reproductively isolated from both parent species. This is a direct mechanism of sympatric speciation because it occurs within the same geographical area without physical barriers.D) When a subset of a population shifts to exploit a new niche or resource (like a new host plant), reproductive isolation can occur due to differences in habitat preference or mating times associated with the host plant. This can lead to sympatric speciation as the populations evolve independently.

Indicate the Scenario(s)that Could Directly Result in Sympatric Speciation