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

-Differentiation of teeth is observed in
A)sharks.
B)bony fishes.
C)amphibians.
D)reptiles.
E)mammals.

Question

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

-Differentiation of teeth is observed in
A)sharks. 
B)bony fishes. 
C)amphibians. 
D)reptiles. 
E)mammals.

Quizplus · Accepted Answer

Differentiation of teeth is observed in mammals, as seen in the clade Mammalia in the phylogenetic tree. Sharks and bony fishes have cartilaginous and bony structures that resemble teeth but they are not technically teeth. Amphibians and reptiles have a simpler and less differentiated dental system.

The Following Questions Refer to the Phylogenetic Tree Shown in Figure