By examining the phylogenetic tree diagrammed above, what conclusion can you draw about the species G. microti?
A) It should not be labeled a species distinct from G. intestinalis.
B) It is part of a monophyletic group that also includes G. intestinalis.
C) It evolved before G. intestinalis.
D) It is more closely related to G. muris than to G. intestinalis.
E) None of the above can be concluded from the data provided.

Question

Quizplus · Accepted Answer

The phylogenetic tree shows that G. microti and G. intestinalis are part of the same monophyletic group, indicating a close evolutionary relationship between the two species. Therefore, choice B is the correct answer. Choice A cannot be concluded because while G. microti is closely related to G. intestinalis, it is still a distinct species. Choice C and D cannot be concluded from the data provided. Choice E is incorrect because a conclusion can be drawn from the data provided.

By Examining the Phylogenetic Tree Diagrammed Above, What Conclusion Can