Biological Classification and Clades Quiz

Rooted tree diagram indicates the common ancestor, while unrooted tree diagram does not make assumptions about ancestral lineage.

A node represents the split in two or more evolutionary lineages from a common ancestor.

Clades are groups of organisms that include an ancestor and all its descendants.

<p>The length of a branch can sometimes indicate the amount of evolutionary change or time elapsed.</p> Signup and view all the answers

<p>Closely related tips are connected by shallower nodes.</p> Signup and view all the answers

<p>A clade helps in grouping organisms based on shared common ancestry.</p> Signup and view all the answers

<p>The root represents the common ancestor of all organisms included in the analysis, usually placed at the bottom of the tree.</p> Signup and view all the answers

<p>Taxa are taxonomic groups distinct enough to be assigned a definite category.</p> Signup and view all the answers

<p>Sister groups are two clades that are each other's closest relatives.</p> Signup and view all the answers

<p>An unrooted tree diagram does not show the origin or 'root' of the taxa in question.</p> Signup and view all the answers