Honors Bio Cladogram Review 2025

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.

Front

What does the term 'common ancestor' mean?

Back

A common ancestor refers to a species from which two or more different species have evolved.

Front

What is taxonomy?

Back

Taxonomy is the science of classification of living organisms into groups based on shared characteristics.

Front

How do you determine the number of organisms with a specific trait on a cladogram?

Back

Count the branches or endpoints that represent organisms possessing the trait in question.

Front

What are the main groups in the animal kingdom?

Back

The main groups include mammals, birds, reptiles, amphibians, and fish.

Front

What is the significance of the root of a cladogram?

Back

The root of a cladogram represents the most recent common ancestor of all the organisms depicted in the diagram.

Front

How are organisms classified in a cladogram?

Back

Organisms are classified based on shared derived characteristics that indicate evolutionary relationships.

Front

What does it mean for two species to be closely related?

Back

Two species are closely related if they share a recent common ancestor and have similar genetic or physical traits.

Front

What is a derived characteristic?

Back

A derived characteristic is a trait that is present in an organism but was absent in the last common ancestor of the group being considered.

Front

How can you identify the most closely related species on a cladogram?

Back

The most closely related species are found on branches that diverge from the same point on the cladogram.