Phylogram differs by showing:
Branch length change reflects key principle in quiz on cladogram+pyqs, where evolutionary mechanisms shape genetic variation and adaptation. In this context, Branch length change aligns with experimental and theoretical evidence from population genetics, behavioral ecology and molecular phylogeny. Textbooks like Campbell Biology, Futuyma Evolution and Hartl Principles illustrate supporting data. Understanding why Branch length change fits helps integrate natural selection, environment.
Ref: Baum & Smith, Tree Thinking, Synapomorphy and Monophyly.