Cladograms

Front

What is the system of classification for organisms called?

Back

Taxonomy

Front

Which two living organisms are most closely related according to a cladogram?

Back

The organisms that share the most recent common ancestor.

Front

Are humans related to tuna?

Back

Yes, humans and tuna share a common ancestor.

Front

According to a cladogram, which group are primates most closely related to?

Back

Rodents and rabbits.

Front

What is the closest relative of humans shown in a cladogram?

Back

Monkeys.

Front

What is a cladogram?

Back

A diagram that shows the evolutionary relationships among various biological species.

Front

What does a node represent in a cladogram?

Back

A common ancestor of the species that branch from that node.

Front

What is the significance of the length of branches in a cladogram?

Back

The length can represent the amount of evolutionary change or time.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures are similar due to shared ancestry, while analogous structures are similar due to convergent evolution.

Front

What is a common ancestor?

Back

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