What diagram shows evolutionary relationships of organisms with a common ancestor?

What diagram shows evolutionary relationships of organisms with a common ancestor?

• A. Cladogram
• B. Family tree
• C. Evolutionary map
• D. Phylogenetic tree

Answer: (D)

A phylogenetic tree best captures evolutionary relationships from a common ancestor. It portrays lineages branching from ancestral nodes, with each branch point representing a divergence from a shared ancestor. This structure directly encodes how species are related through descent, which is the essence of showing common ancestry. Cladograms also show relationships but emphasize shared derived traits and don’t always reflect time or exact ancestral connections as clearly. An evolutionary map isn’t a standard term for this concept, and a family tree focuses more on genealogical relationships among individuals in recent generations. So the diagram that most directly illustrates evolutionary relationships with a common ancestor is the phylogenetic tree.

A phylogenetic tree best captures evolutionary relationships from a common ancestor. It portrays lineages branching from ancestral nodes, with each branch point representing a divergence from a shared ancestor. This structure directly encodes how species are related through descent, which is the essence of showing common ancestry. Cladograms also show relationships but emphasize shared derived traits and don’t always reflect time or exact ancestral connections as clearly. An evolutionary map isn’t a standard term for this concept, and a family tree focuses more on genealogical relationships among individuals in recent generations. So the diagram that most directly illustrates evolutionary relationships with a common ancestor is the phylogenetic tree.