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 it mean for species to be closely related in a cladogram?

Back

Species that are closely related share a more recent common ancestor, indicating they have more similar traits and evolutionary histories.

Front

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

Back

Jaws.

Front

What trait was developed most recently according to the cladogram?

Back

Opposable thumbs.

Front

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

Back

Point C.

Front

What is the significance of a common ancestor in evolutionary biology?

Back

A common ancestor indicates that different species have diverged from a shared lineage, helping to trace the evolutionary history of organisms.

Front

What does the term 'derived trait' mean?

Back

A derived trait is a characteristic that evolved in a particular lineage and is not present in the ancestor of that lineage.

Front

What is the difference between a homologous trait and an analogous trait?

Back

Homologous traits are similar due to shared ancestry, while analogous traits are similar due to convergent evolution, not shared ancestry.

Front

What does the term 'phylogeny' refer to?

Back

Phylogeny refers to the evolutionary history and relationships among species or groups of organisms.

Front

How can cladograms be used in biology?

Back

Cladograms can be used to visualize evolutionary relationships, predict characteristics of organisms, and understand the process of evolution.