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

-How are primates different from all other mammals?
A)placental embryonic development
B)hairy bodies
C)arboreal lifestyles
D)ability to produce milk
E)opposable thumbs in many species

Question

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

-How are primates different from all other mammals?
A)placental embryonic development 
B)hairy bodies 
C)arboreal lifestyles 
D)ability to produce milk 
E)opposable thumbs in many species

Quizplus · Accepted Answer

Primates are different from all other mammals because they have opposable thumbs in many species. While other mammals may have thumbs or digits that can be used for grasping, only primates have flexible and opposable thumbs that allow for precision grip and object manipulation. Other traits listed (placental embryonic development, hairy bodies, ability to produce milk, and arboreal lifestyles) are shared by many mammals, including primates.

The Following Questions Refer to the Phylogenetic Tree Shown in Figure