Imagine that a taxonomist is provided with several flashcards on which the names of different species are written. She would likely organize these flashcards to construct a phylogenetic tree. To do this, would she pay attention to which species belong to which genus or class.

Yes

Explanation:

A phylogenetic tree is constructed to show evolutionary relationship among biological species based on their similarities and differences in their phenotype or genotype.

The taxonomist will have to pay attention to which genus or class a species belong to.

This is because a species belonging to a particular genus or will have a characteristic that will differentiate them to species of a different class or genus. Hence determining its' position on the phylogenetic tree