The Following Questions Refer to the Phylogenetic Tree Shown in Figure

Multiple Choice

The following questions refer to the phylogenetic tree shown in Figure 34.2.

Figure 34.2
-If circle 3 includes all of the extant reptiles that are ectotherms, then what do circles 4 and 6 represent?

A) crocodiles and birds
B) turtles and birds
C) ratites and carinates
D) mammals and birds
E) There is not enough information to say.