Sympatric speciation is common in plants because they can reproduce by self-fertilization, allowing new species to arise without geographic isolation. Polyploidy, particularly in plants, can lead to sympatric speciation, but not necessarily through triploids or only allopolyploids.

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Sympatric Speciation

Question 139

Multiple Choice

Sympatric speciation

A) involves reproductive isolation of dispersed populations.
B) is often associated with polyploidy in animals.
C) is common in plants since many plant species can reproduce by self-fertilization.
D) can result from the generation of fertile triploid plants.
E) results only from the generation of allopolyploids.

Correct Answer: