Cladograms/Phylogenetic Tree Review

Front

What are the three domains of life?

Back

Archaea, Bacteria, and Eukarya.

Front

What do salamanders and lizards share in common according to cladograms?

Back

Jaws and Lungs.

Front

Which organisms share the most derived traits in a phylogenetic tree?

Back

A and B because they share the most branch points.

Front

Which group of animals is most closely related to birds?

Back

Saurischian dinosaurs.

Front

What is the common ancestor of Letters C and E in a phylogenetic tree?

Back

2.

Front

What is a cladogram?

Back

A diagram that shows the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.

Front

What is a phylogenetic tree?

Back

A branching diagram that represents the evolutionary history of a group of organisms.

Front

What are derived traits?

Back

Characteristics that are present in an organism but were absent in the last common ancestor of the group being considered.

Front

What is the significance of branch points in a phylogenetic tree?

Back

Branch points represent the divergence of two or more lineages from a common ancestor.

Front

How do scientists use cladograms?

Back

To hypothesize the evolutionary relationships and lineage of organisms based on shared derived characteristics.