Based on Anderson and Johnson's conclusions regarding the evolution of tongue length in long-tongued flies, which of the following would be expected?

Question

Quizplus · Accepted Answer

Anderson and Johnson's conclusions likely suggest that the evolution of tongue length in long-tongued flies is closely related to the availability and characteristics of their nectar sources. If Zaluzianskya flowers are the primary nectar source for these flies, populations with longer tongues would be expected where Zaluzianskya is the only available nectar source (C), and populations with shorter tongues might adapt behaviors to utilize other flowers when Zaluzianskya is less accessible or absent, hence spending more time visiting other flowers (B).

Based on Anderson and Johnson's Conclusions Regarding the Evolution of Tongue