Beetle pollinators of a particular plant are attracted to its flowers' bright orange color. The beetles not only pollinate the flowers, but they mate while inside of the flowers. A mutant version of the plant with red flowers becomes more common with the passage of time. A particular variant of the beetle prefers the red flowers to the orange flowers. Over time, these two beetle variants diverge from each other to such an extent that interbreeding is no longer possible. What kind of speciation has occurred in this example, and what has driven it?
A) allopatric speciation; ecological isolation
B) sympatric speciation; habitat differentiation
C) allopatric speciation; behavioral isolation
D) sympatric speciation; allopolyploidy

Question

Quizplus · Accepted Answer

Sympatric speciation has occurred due to habitat differentiation, as the beetles have diverged into two species while living in the same geographic area, driven by their preference for different flower colors.

Beetle Pollinators of a Particular Plant Are Attracted to Its