As the evolutionary biologist in charge of a student project

As the evolutionary biologist in charge of a student project to create a phylogenetic tree that better clarified the evolutionary relationships between the species listed in the accompanying figure, you asked the students to pose a question that would be a logical first step to better understand the evolutionary history of the group. Which student question would be the best starting point? Can we evaluate the DNA sequence of taxon G? Can we evaluate evidence to determine the relationships of species D, E, and F? Can we compare DNA evidence for taxa B and C? Can we investigate the genetic relationships between species A and G?

Solution

Can we evaluate evidence to determine the relationships of species D, E, and F.

This is the best starting as this question is pointing towards a basic thing that is similariteis between closely related species by evaluating morphological evidence rather than a dna evidence in 3 rd question.

We have to go from most similar to least similar species, from phenotype to genotype while evaluating a phylogenetic relationship.