Refer to the figure. The figure shows the phylogeny of three extant species of turtles.Species 1 and 2 have a particular bone structure, while species 3 does not.The most generally accepted opinion is that the structure evolved after species 1 and 2 diverged from species 3.Recently, some scientists have questioned this and suggested that the structure evolved before species 1, 2, and 3 diverged from the common ancestor and that the structure was lost in species 3.Two fossils (A and B) have been discovered.Which information from these fossils would best support the new claim that species 3 lost the structure?
A) Look at species A. If the structure is present there, the new claim is supported.
B) Look at species A. If the structure is absent there, the new claim is supported.
C) Look at species B. If the structure is present there, the new claim is supported.
D) Look at species B. If the structure is absent there, the new claim is supported.
E) Fossil data cannot be used to address this question.

Question

Refer to the figure.  The figure shows the phylogeny of three extant species of turtles.Species 1 and 2 have a particular bone structure, while species 3 does not.The most generally accepted opinion is that the structure evolved after species 1 and 2 diverged from species 3.Recently, some scientists have questioned this and suggested that the structure evolved before species 1, 2, and 3 diverged from the common ancestor and that the structure was lost in species 3.Two fossils (A and B) have been discovered.Which information from these fossils would best support the new claim that species 3 lost the structure?
A) Look at species A. If the structure is present there, the new claim is supported. 
B) Look at species A. If the structure is absent there, the new claim is supported. 
C) Look at species B. If the structure is present there, the new claim is supported. 
D) Look at species B. If the structure is absent there, the new claim is supported. 
E) Fossil data cannot be used to address this question.

Quizplus · Accepted Answer

The Answer of Refer to the figure.  The figure shows the phylogeny of three extant species of turtles.Species 1 and 2 have a particular bone structure, while species 3 does not.The most generally accepted opinion is that the structure evolved after species 1 and 2 diverged from species 3.Recently, some scientists have questioned this and suggested that the structure evolved before species 1, 2, and 3 diverged from the common ancestor and that the structure was lost in species 3.Two fossils (A and B) have been discovered.Which information from these fossils would best support the new claim that species 3 lost the structure?
A) Look at species A. If the structure is present there, the new claim is supported. 
B) Look at species A. If the structure is absent there, the new claim is supported. 
C) Look at species B. If the structure is present there, the new claim is supported. 
D) Look at species B. If the structure is absent there, the new claim is supported. 
E) Fossil data cannot be used to address this question.

Refer to the Figure