Cladogram Review

What do cladograms illustrate?

• Evolutionary history of a group of organisms

• Geographical distribution of species

• Behavioral patterns of animals

• Dietary habits of species

Which of the following is a characteristic of phylogenetic trees that differs from cladograms?

• Indicate time spans between branching points

• Show hypothetical relationships based on traits

• Organize species into clades

• Use observable traits for construction

What evidence is used to construct cladograms?

• Observable traits or molecular evidence

• Geographical location

• Behavioral studies

• Dietary analysis

Which animals share a clade due to their four-chambered hearts according to the passage?

• Birds and crocodiles

• Snakes and lizards

• Bears and wolves

• Whales and dolphins

What is the closest living relative of cetaceans mentioned in the passage?

• Hippopotamus

• Crocodile

• Bear

• Wolf