What Situation Would Be MOST Likely to Produce a New

Multiple Choice

What situation would be MOST likely to produce a new species?

A) A group of polyploid individuals arises by an abnormal mitosis.The polyploids can only produce viable offspring by mating with
Each other.
B) Several individuals join an existing population and introduce new,beneficial alleles.
C) Several individuals colonize a new area and establish a population.Migration between the new population and the source population is common.
D) An existing species becomes subdivided by a glacier and the resulting groups remain physically isolated from each other for thousands of years.When the glacier melts,the two groups have developed slight differences in coloration,but are able to interbreeD.
E) A volcano erupts and kills all of the frogs on an island,along with many other species.New frogs colonize the island and begin reproducing rapidly because there are no longer any frog predators.