Logically, which of these should cast the most doubt on the relationships depicted by an evolutionary tree?
A) None of the organisms depicted by the tree ate the same foods.
B) Some of the organisms depicted by the tree had lived in different habitats.
C) The skeletal remains of the organisms depicted by the tree were incomplete (in other words, some bones were missing).
D) Transitional fossils had not been found.
E) Relationships between DNA sequences among the species did not match relationships between skeletal patterns.
CS-US Relationships Predict Conditioning
The Cycle of Violence and Abuse in Intimate Relationships
Earth-Sun Relationships
Cast of a Fossil Dunkleosteus, with a human to illustrate scale
Relationships among Jawed Vertebrates
Cladogram showing genetic distances and relationships between human populations