Cladograms Flashcard Day Review

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 a common ancestor represent in a cladogram?

Back

A common ancestor in a cladogram represents a species from which two or more species have evolved.

Front

What characteristic do all animals to the right of the hagfish have?

Back

Jaws.

Front

Where can you find the common ancestor of alligators and T. rex on a cladogram?

Back

At Point C.

Front

What trait was developed most recently according to the cladogram?

Back

Opposable thumbs.

Front

Which group are primates most closely related to according to the cladogram?

Back

Rodents and rabbits.

Front

What is the significance of point A in a cladogram?

Back

Point A represents a divergence point where a common ancestor gave rise to two or more different species.

Front

What does it mean if two species share a more recent common ancestor?

Back

It means they are more closely related to each other than to species that share a more distant common ancestor.

Front

What is the role of traits in a cladogram?

Back

Traits help to determine the evolutionary relationships and the order in which species diverged from their common ancestors.

Front

How do scientists use cladograms?

Back

Scientists use cladograms to visualize and analyze the evolutionary history and relationships among species.