EOC Review Cladograms and Phylogenetic Trees

Front

What does each node on a cladogram represent?

Back

The last point at which two groups shared a common ancestor.

Front

Which organism is the closest relative of the parrot on a cladogram?

Back

Caiman.

Front

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

Back

2.

Front

What common characteristic do all animals to the right of the salamander have?

Back

Claws or nails.

Front

What do the branching points in a phylogenetic tree represent?

Back

Common ancestors.

Front

Define 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 is a common ancestor?

Back

An ancestor that two or more descendant species have in common.

Front

What does monophyletic mean?

Back

A group of organisms that consists of a common ancestor and all its descendants.

Front

What is the significance of traits in cladistics?

Back

Traits are used to determine the relationships between organisms and to construct cladograms.