Comparative Anatomy Practice

Front

What does the presence of tiny, non-functional leg bones in modern whales suggest?

Back

Whales evolved from ancestors with legs.

Front

What are pelvic bones in whales an example of?

Back

Vestigial structures.

Front

Which structures are considered homologous?

Back

Dog paw and human hand.

Front

What does the similarity between a bat wing, a human arm, and a whale flipper suggest?

Back

They have a common evolutionary ancestor.

Front

Why is the appendix in humans considered vestigial?

Back

It no longer has a significant function but had one in ancestors.

Front

What are analogous structures?

Back

Structures that have similar functions but different evolutionary origins.

Front

What is the definition of homologous structures?

Back

Structures that share a common ancestry but may have different functions.

Front

Give an example of vestigial structures in humans.

Back

The tailbone (coccyx) is a vestigial structure.

Front

What is the significance of studying comparative anatomy?

Back

It helps understand evolutionary relationships among species.

Front

What is an example of an analogous structure?

Back

Bat wing and butterfly wing.