Answer:
In branching tree diagram species that have less common characteristics are on the bottom, and those who have the most common characteristics are on the top.
Explanation:
The branches are the relations between the organisms.
Branches on branching tree serve to sow which characteristics are in common to species and which not, to become new species. Also, the evolution of organisms is shown on the diagram, following the line on the right.
Their grupations show their characteristics and their evolution connections.
