The following questions refer to the phylogenetic tree shown in Figure 34.1.

-Which pair of numbers includes extant endotherms?
A)3 and 4
B)4 and 5
C)6 and 8
D)3 and 8
E)6 and 7

Question

The following questions refer to the phylogenetic tree shown in Figure 34.1.

-Which pair of numbers includes extant endotherms?
A)3 and 4 
B)4 and 5 
C)6 and 8 
D)3 and 8 
E)6 and 7

Quizplus · Accepted Answer

Endotherms are animals that regulate their body temperature internally. Extant endotherms include birds and mammals, which are represented by numbers 6 and 8.

The Following Questions Refer to the Phylogenetic Tree Shown in Figure