Front

What are the two organisms that have hair?

Back

Primates & Rodents

Front

What is speciation?

Back

Formation of new species

Front

On the cladogram, which organism is the closest relative of humans?

Back

Hare

Front

According to the cladogram, sharks are most closely related to which organism?

Back

Ray finned fish

Front

What is natural selection?

Back

Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest.

Front

What is a cladogram?

Back

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 node represent in a cladogram?

Back

A common ancestor shared by the organisms branching from that point.

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 are derived characteristics?

Back

Traits that are present in an organism but absent in the last common ancestor of the group being considered.

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.