phylogenetic trees

Front

What do the branch lengths on a phylogenetic tree represent?

Back

The amount of genetic change since divergence.

Front

Which group of animals are most closely related to birds on a phylogenetic tree?

Back

Saurischian dinosaurs.

Front

What is the scientific name for an organism made from?

Back

Genus and species name.

Front

Who is the closest relative to the brown bear?

Back

Sun bear.

Front

What are the traits shown on phylogenetic trees, such as 'four limbs' or 'vertebrae'?

Back

Derived characteristics.

Front

What is a phylogenetic tree?

Back

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

Front

What does a node represent in a phylogenetic tree?

Back

A common ancestor of the descendant species.

Front

What is the significance of a clade in a phylogenetic tree?

Back

A clade is a group of organisms that includes an ancestor and all its descendants.

Front

What is the difference between homologous and analogous traits?

Back

Homologous traits are inherited from a common ancestor, while analogous traits arise independently due to convergent evolution.

Front

What is the purpose of using molecular data in constructing phylogenetic trees?

Back

Molecular data provides insights into genetic relationships and evolutionary history that may not be evident from morphology alone.