Comparative Anatomy

Front

What are homologous structures?

Back

Structures that are inherited from a common ancestor.

Front

What are analogous structures?

Back

Body parts that perform a similar function but differ in structure.

Front

Give an example of homologous structures.

Back

Human arm and bird wing.

Front

What does comparative anatomy involve?

Back

Comparing similar structures in various species.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures share a common ancestry; analogous structures perform similar functions but do not.

Front

What is a vestigial organ?

Back

An organ that has lost its original function through evolution.

Front

What is the significance of embryological similarities in comparative anatomy?

Back

They provide evidence of common ancestry among different species.

Front

What is the fossil record?

Back

A historical sequence of life forms preserved in rock layers.

Front

How do scientists use biochemistry in comparative anatomy?

Back

By comparing the molecular structures of different organisms to find evolutionary relationships.

Front

What is an example of a vestigial structure in humans?

Back

The human appendix.