Two of Darwin's finches display a character displacement when they occur as sympatric species.Which of the statements correctly interprets the graph?
A)Both species have the same size beak on Santa Maria Island.
B)Both species have the same size beaks on Daphne Major.
C)Both species have the same size beaks on Los Hermanos Island.
D)The two species have different beak sizes when they occur on the same island.
E)The two species feed on different food resources; one feeds on seeds while the other feeds on insects.

Question

Two of Darwin's finches display a character displacement when they occur as sympatric species.Which of the statements correctly interprets the graph? 
A)Both species have the same size beak on Santa Maria Island. 
B)Both species have the same size beaks on Daphne Major. 
C)Both species have the same size beaks on Los Hermanos Island. 
D)The two species have different beak sizes when they occur on the same island. 
E)The two species feed on different food resources; one feeds on seeds while the other feeds on insects.

Quizplus · Accepted Answer

The graph shows that when both species occur on Santa Maria Island, their beaks have similar sizes. However, when they occur on Daphne Major, the beak sizes of the two species differ, indicating a character displacement. Therefore, D is the correct answer as it states that the two species have different beak sizes when they occur on the same island. Option E may also be a correct choice as a possible explanation for the observed character displacement.

Two of Darwin's Finches Display a Character Displacement When They