Phylogenetic Trees

Front

What is a Phylogenetic Tree?

Back

A diagram that shows evolutionary relationships between species connected by a common ancestor.

Front

What is a Cladogram?

Back

A type of phylogenetic tree that shows the relationships among organisms based on shared characteristics.

Front

What do all organisms originate from?

Back

A common ancestor.

Front

What characteristic do all animals to the right of the salamander on a phylogenetic tree share?

Back

Claws or nails.

Front

Which group of animals is most closely related to birds?

Back

Saurischian dinosaurs.

Front

What is a common ancestor?

Back

An ancestral species from which multiple species have evolved.

Front

What do phylogenetic trees illustrate?

Back

The evolutionary history and relationships among various biological species.

Front

What is the significance of shared characteristics in phylogenetic trees?

Back

They indicate evolutionary relationships and common ancestry.

Front

What is the difference between Saurischian and Ornithischian dinosaurs?

Back

Saurischian dinosaurs are more closely related to birds, while Ornithischian dinosaurs are not.

Front

How can you determine the closest relative of an organism on a phylogenetic tree?

Back

By looking at the branches that are closest together, indicating a more recent common ancestor.